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Volumn 47, Issue 18, 2007, Pages 2426-2443

Oculomotor control in a sequential search task

Author keywords

Eye movements; Fixation position; Oculomotor error; Reading; Visual search

Indexed keywords

ADULT; ARTICLE; CONTROLLED STUDY; EYE FIXATION; EYE MOVEMENT CONTROL; HUMAN; HUMAN EXPERIMENT; NORMAL HUMAN; PRIORITY JOURNAL; SACCADIC EYE MOVEMENT; VISION;

EID: 34547765320     PISSN: 00426989     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.visres.2007.05.010     Document Type: Article
Times cited : (26)

References (77)
  • 1
    • 0030612822 scopus 로고    scopus 로고
    • The psychophysics toolbox
    • Brainard D.H. The psychophysics toolbox. Spatial Vision 10 (1997) 443-446
    • (1997) Spatial Vision , vol.10 , pp. 443-446
    • Brainard, D.H.1
  • 2
    • 18844478310 scopus 로고    scopus 로고
    • The ecology of gaze shifts
    • Brockmann D., and Geisel T. The ecology of gaze shifts. Neurocomputing 32-33 (2000) 643-650
    • (2000) Neurocomputing , vol.32-33 , pp. 643-650
    • Brockmann, D.1    Geisel, T.2
  • 5
    • 0029884453 scopus 로고    scopus 로고
    • Saccade target selection and object recognition: Evidence for a common attentional mechanism
    • Deubel H., and Schneider W.X. Saccade target selection and object recognition: Evidence for a common attentional mechanism. Vision Research 36 (1996) 1827-1837
    • (1996) Vision Research , vol.36 , pp. 1827-1837
    • Deubel, H.1    Schneider, W.X.2
  • 6
    • 0030782186 scopus 로고    scopus 로고
    • Neuronal activity in monkey superior colliculus related to the initiation of saccadic eye movements
    • Dorris M.C., Paré M., and Munoz D.P. Neuronal activity in monkey superior colliculus related to the initiation of saccadic eye movements. Journal of Neuroscience 17 21 (1997) 8566-8579
    • (1997) Journal of Neuroscience , vol.17 , Issue.21 , pp. 8566-8579
    • Dorris, M.C.1    Paré, M.2    Munoz, D.P.3
  • 8
    • 33748935524 scopus 로고    scopus 로고
    • Microsaccades: A microcosm for research on oculomotor control, attention, and visual perception
    • Engbert R. Microsaccades: A microcosm for research on oculomotor control, attention, and visual perception. Progress in Brain Research 154 (2006) 177-192
    • (2006) Progress in Brain Research , vol.154 , pp. 177-192
    • Engbert, R.1
  • 9
    • 0037381915 scopus 로고    scopus 로고
    • Microsaccades uncover the orientation of covert attention
    • Engbert R., and Kliegl R. Microsaccades uncover the orientation of covert attention. Vision Research 43 (2003) 1035-1045
    • (2003) Vision Research , vol.43 , pp. 1035-1045
    • Engbert, R.1    Kliegl, R.2
  • 10
    • 0037241941 scopus 로고    scopus 로고
    • Noise-enhanced performance in reading
    • Engbert R., and Kliegl R. Noise-enhanced performance in reading. Neurocomputing 50 (2003) 473-478
    • (2003) Neurocomputing , vol.50 , pp. 473-478
    • Engbert, R.1    Kliegl, R.2
  • 11
    • 2942672919 scopus 로고    scopus 로고
    • Microsaccades keep the eyes' balance during fixation
    • Engbert R., and Kliegl R. Microsaccades keep the eyes' balance during fixation. Psychological Science 15 6 (2004) 431-436
    • (2004) Psychological Science , vol.15 , Issue.6 , pp. 431-436
    • Engbert, R.1    Kliegl, R.2
  • 13
    • 0036172014 scopus 로고    scopus 로고
    • A dynamical model of saccade generation in reading based on spatially distributed lexical processing
    • Engbert R., Longtin A., and Kliegl R. A dynamical model of saccade generation in reading based on spatially distributed lexical processing. Vision Research 42 (2002) 621-636
    • (2002) Vision Research , vol.42 , pp. 621-636
    • Engbert, R.1    Longtin, A.2    Kliegl, R.3
  • 15
    • 84884885934 scopus 로고    scopus 로고
    • An iterative algorithm for the estimation of the distribution of mislocated fixations during reading
    • van Gompel R., Fischer M., Murray W.S., and Hill R. (Eds), Elsevier Science, Oxford
    • Engbert R., Nuthmann A., and Kliegl R. An iterative algorithm for the estimation of the distribution of mislocated fixations during reading. In: van Gompel R., Fischer M., Murray W.S., and Hill R. (Eds). Eye movements: A window on mind and brain (2007), Elsevier Science, Oxford 319-337
    • (2007) Eye movements: A window on mind and brain , pp. 319-337
    • Engbert, R.1    Nuthmann, A.2    Kliegl, R.3
  • 16
  • 17
    • 0031905704 scopus 로고    scopus 로고
    • Comparison of the discharge characteristics of brain stem omnipause neurons and superior colliculus fixation neurons in monkey: Implications for control of fixation and saccade behavior
    • Everling S., Paré M., Dorris M.C., and Munoz D.P. Comparison of the discharge characteristics of brain stem omnipause neurons and superior colliculus fixation neurons in monkey: Implications for control of fixation and saccade behavior. Journal of Neurophysiology 79 2 (1998) 511-528
    • (1998) Journal of Neurophysiology , vol.79 , Issue.2 , pp. 511-528
    • Everling, S.1    Paré, M.2    Dorris, M.C.3    Munoz, D.P.4
  • 18
    • 0019947506 scopus 로고
    • Global processing for saccadic eye movements
    • Findlay J.M. Global processing for saccadic eye movements. Vision Research 22 (1982) 1033-1045
    • (1982) Vision Research , vol.22 , pp. 1033-1045
    • Findlay, J.M.1
  • 19
    • 0029095659 scopus 로고
    • Visual search: Eye movements and peripheral vision
    • Findlay J.M. Visual search: Eye movements and peripheral vision. Optometry and Vision Science 72 (1995) 461-466
    • (1995) Optometry and Vision Science , vol.72 , pp. 461-466
    • Findlay, J.M.1
  • 20
    • 0031106702 scopus 로고    scopus 로고
    • Saccade target selection during visual search
    • Findlay J.M. Saccade target selection during visual search. Vision Research 37 (1997) 617-631
    • (1997) Vision Research , vol.37 , pp. 617-631
    • Findlay, J.M.1
  • 21
    • 0035057874 scopus 로고    scopus 로고
    • Saccade target selection in visual search: The effect of information from the previous fixation
    • Findlay J.M., Brown V., and Gilchrist I.D. Saccade target selection in visual search: The effect of information from the previous fixation. Vision Research 41 (2001) 87-95
    • (2001) Vision Research , vol.41 , pp. 87-95
    • Findlay, J.M.1    Brown, V.2    Gilchrist, I.D.3
  • 23
    • 0015731414 scopus 로고
    • Eye movements during visual search and memory search
    • Gould J.D. Eye movements during visual search and memory search. Journal of Experimental Psychology 98 (1973) 184-195
    • (1973) Journal of Experimental Psychology , vol.98 , pp. 184-195
    • Gould, J.D.1
  • 24
    • 0001140202 scopus 로고
    • Eye-movement parameters and pattern discrimination
    • Gould J.D., and Dill A.B. Eye-movement parameters and pattern discrimination. Perception & Psychophysics 6 (1969) 311-320
    • (1969) Perception & Psychophysics , vol.6 , pp. 311-320
    • Gould, J.D.1    Dill, A.B.2
  • 26
    • 0027566301 scopus 로고
    • Eye movement control during visual object processing: Effects of initial fixation position and semantic constraint
    • Henderson J.M. Eye movement control during visual object processing: Effects of initial fixation position and semantic constraint. Canadian Journal of Experimental Psychology 47 (1993) 79-98
    • (1993) Canadian Journal of Experimental Psychology , vol.47 , pp. 79-98
    • Henderson, J.M.1
  • 27
    • 0142216243 scopus 로고    scopus 로고
    • Human gaze control during real-world scene perception
    • Henderson J.M. Human gaze control during real-world scene perception. Trends in Cognitive Sciences 7 (2003) 498-504
    • (2003) Trends in Cognitive Sciences , vol.7 , pp. 498-504
    • Henderson, J.M.1
  • 29
    • 0029356126 scopus 로고
    • The role of visual attention in saccadic eye movements
    • Hoffmann J., and Subramaniam B. The role of visual attention in saccadic eye movements. Perception & Psychophysics 57 (1995) 787-795
    • (1995) Perception & Psychophysics , vol.57 , pp. 787-795
    • Hoffmann, J.1    Subramaniam, B.2
  • 30
    • 0030253386 scopus 로고    scopus 로고
    • Control of fixation durations in a simple search task
    • Hooge I.T.C., and Erkelens C.J. Control of fixation durations in a simple search task. Perception & Psychophysics 58 (1996) 969-976
    • (1996) Perception & Psychophysics , vol.58 , pp. 969-976
    • Hooge, I.T.C.1    Erkelens, C.J.2
  • 31
    • 0032079320 scopus 로고    scopus 로고
    • Adjustment of fixation duration in visual search
    • Hooge I.T.C., and Erkelens C.J. Adjustment of fixation duration in visual search. Vision Research 38 (1998) 1295-1302
    • (1998) Vision Research , vol.38 , pp. 1295-1302
    • Hooge, I.T.C.1    Erkelens, C.J.2
  • 32
    • 0033120321 scopus 로고    scopus 로고
    • Peripheral vision and oculomotor control during visual search
    • Hooge I.T.C., and Erkelens C.J. Peripheral vision and oculomotor control during visual search. Vision Research 39 (1999) 1567-1575
    • (1999) Vision Research , vol.39 , pp. 1567-1575
    • Hooge, I.T.C.1    Erkelens, C.J.2
  • 33
    • 21844499684 scopus 로고
    • Do irregular letter combinations attract readers' attention? Evidence from fixation locations in words
    • Hyönä J. Do irregular letter combinations attract readers' attention? Evidence from fixation locations in words. Journal of Experimental Psychology: Human Perception and Performance 21 1 (1995) 68-81
    • (1995) Journal of Experimental Psychology: Human Perception and Performance , vol.21 , Issue.1 , pp. 68-81
    • Hyönä, J.1
  • 34
    • 33244474402 scopus 로고    scopus 로고
    • Tracking the mind during reading: The influence of past, present, and future words on fixation durations
    • Kliegl R., Nuthmann A., and Engbert R. Tracking the mind during reading: The influence of past, present, and future words on fixation durations. Journal of Experimental Psychology: General 135 (2006) 12-35
    • (2006) Journal of Experimental Psychology: General , vol.135 , pp. 12-35
    • Kliegl, R.1    Nuthmann, A.2    Engbert, R.3
  • 35
    • 0029037304 scopus 로고
    • The role of attention in the programming of saccades
    • Kowler E., Anderson E., Dosher B., and Blaser E. The role of attention in the programming of saccades. Vision Research 35 (1995) 1897-1916
    • (1995) Vision Research , vol.35 , pp. 1897-1916
    • Kowler, E.1    Anderson, E.2    Dosher, B.3    Blaser, E.4
  • 37
    • 0035189421 scopus 로고    scopus 로고
    • In what ways do eye movements contribute to everyday activities?
    • Land M.F., and Hayhoe M. In what ways do eye movements contribute to everyday activities?. Vision Research 41 25-26 (2001) 3559-3565
    • (2001) Vision Research , vol.41 , Issue.25-26 , pp. 3559-3565
    • Land, M.F.1    Hayhoe, M.2
  • 38
    • 0028225676 scopus 로고
    • Where we look when we steer
    • Land M.F., and Lee D.N. Where we look when we steer. Nature 369 6483 (1994) 742-744
    • (1994) Nature , vol.369 , Issue.6483 , pp. 742-744
    • Land, M.F.1    Lee, D.N.2
  • 39
    • 0033681569 scopus 로고    scopus 로고
    • From eye movements to actions: How batsmen hit the ball
    • Land M.F., and McLeod P. From eye movements to actions: How batsmen hit the ball. Nature Neuroscience 3 12 (2000) 1340-1345
    • (2000) Nature Neuroscience , vol.3 , Issue.12 , pp. 1340-1345
    • Land, M.F.1    McLeod, P.2
  • 40
    • 11444263343 scopus 로고    scopus 로고
    • Microsaccade dynamics during covert attention
    • Laubrock J., Engbert R., and Kliegl R. Microsaccade dynamics during covert attention. Vision Research 45 6 (2005) 721-730
    • (2005) Vision Research , vol.45 , Issue.6 , pp. 721-730
    • Laubrock, J.1    Engbert, R.2    Kliegl, R.3
  • 43
    • 0016632608 scopus 로고
    • Eye movements during search for coded and uncoded targets
    • Luria S.M., and Strauss M.S. Eye movements during search for coded and uncoded targets. Perception & Psychophysics 17 (1975) 303-308
    • (1975) Perception & Psychophysics , vol.17 , pp. 303-308
    • Luria, S.M.1    Strauss, M.S.2
  • 44
    • 0031303129 scopus 로고    scopus 로고
    • Fixation patterns made during brief examination of two-dimensional images
    • Mannan S.K., Ruddock K.H., and Wooding D.S. Fixation patterns made during brief examination of two-dimensional images. Perception 26 8 (1997) 1059-1072
    • (1997) Perception , vol.26 , Issue.8 , pp. 1059-1072
    • Mannan, S.K.1    Ruddock, K.H.2    Wooding, D.S.3
  • 46
    • 0023777598 scopus 로고
    • Eye movement control during reading: I. The location of initial eye fixations on words
    • McConkie G.W., Kerr P.W., Reddix M.D., and Zola D. Eye movement control during reading: I. The location of initial eye fixations on words. Vision Research 28 (1988) 1107-1118
    • (1988) Vision Research , vol.28 , pp. 1107-1118
    • McConkie, G.W.1    Kerr, P.W.2    Reddix, M.D.3    Zola, D.4
  • 47
    • 27944450495 scopus 로고    scopus 로고
    • An anatomically constrained, stochastic model of eye movement control in reading
    • McDonald S.A., Carpenter R.H.S., and Shillcock R.C. An anatomically constrained, stochastic model of eye movement control in reading. Psychological Review 112 4 (2005) 814-840
    • (2005) Psychological Review , vol.112 , Issue.4 , pp. 814-840
    • McDonald, S.A.1    Carpenter, R.H.S.2    Shillcock, R.C.3
  • 48
    • 34047189124 scopus 로고    scopus 로고
    • Modeling the control of fixational eye movements with neurophysiological delays
    • Mergenthaler K., and Engbert R. Modeling the control of fixational eye movements with neurophysiological delays. Physical Review Letters 98 (2007) 138104
    • (2007) Physical Review Letters , vol.98 , pp. 138104
    • Mergenthaler, K.1    Engbert, R.2
  • 49
    • 0031854062 scopus 로고    scopus 로고
    • The guidance of eye movements during active visual search
    • Motter B.C., and Belky E.J. The guidance of eye movements during active visual search. Vision Research 38 (1998) 1805-1815
    • (1998) Vision Research , vol.38 , pp. 1805-1815
    • Motter, B.C.1    Belky, E.J.2
  • 50
    • 0032054773 scopus 로고    scopus 로고
    • The zone of focal attention during active visual search
    • Motter B.C., and Belky E.J. The zone of focal attention during active visual search. Vision Research 38 (1998) 1007-1022
    • (1998) Vision Research , vol.38 , pp. 1007-1022
    • Motter, B.C.1    Belky, E.J.2
  • 51
    • 19944382233 scopus 로고    scopus 로고
    • Mislocated fixations during reading and the inverted optimal viewing position effect
    • Nuthmann A., Engbert R., and Kliegl R. Mislocated fixations during reading and the inverted optimal viewing position effect. Vision Research 45 (2005) 2201-2217
    • (2005) Vision Research , vol.45 , pp. 2201-2217
    • Nuthmann, A.1    Engbert, R.2    Kliegl, R.3
  • 52
    • 33847656682 scopus 로고    scopus 로고
    • The IOVP effect in mindless reading: Experiment and modeling
    • Nuthmann A., Engbert R., and Kliegl R. The IOVP effect in mindless reading: Experiment and modeling. Vision Research 47 7 (2007) 990-1002
    • (2007) Vision Research , vol.47 , Issue.7 , pp. 990-1002
    • Nuthmann, A.1    Engbert, R.2    Kliegl, R.3
  • 53
    • 0037222279 scopus 로고    scopus 로고
    • Scene content selected by active vision
    • Parkhurst D.J., and Niebur E. Scene content selected by active vision. Spatial Vision 16 2 (2003) 125-154
    • (2003) Spatial Vision , vol.16 , Issue.2 , pp. 125-154
    • Parkhurst, D.J.1    Niebur, E.2
  • 54
    • 0030612832 scopus 로고    scopus 로고
    • The videotoolbox software for visual psychophysics: Transforming numbers into movies
    • Pelli D.G. The videotoolbox software for visual psychophysics: Transforming numbers into movies. Spatial Vision 10 (1997) 437-442
    • (1997) Spatial Vision , vol.10 , pp. 437-442
    • Pelli, D.G.1
  • 55
  • 56
    • 28444452584 scopus 로고    scopus 로고
    • Tests of the E-Z Reader model: Exploring the interface between cognition and eye-movement control
    • Pollatsek A., Reichle E., and Rayner K. Tests of the E-Z Reader model: Exploring the interface between cognition and eye-movement control. Cognitive Psychology 52 (2006) 1-56
    • (2006) Cognitive Psychology , vol.52 , pp. 1-56
    • Pollatsek, A.1    Reichle, E.2    Rayner, K.3
  • 57
    • 0018345502 scopus 로고
    • Eye guidance in reading: Fixation locations within words
    • Rayner K. Eye guidance in reading: Fixation locations within words. Perception 8 (1979) 21-30
    • (1979) Perception , vol.8 , pp. 21-30
    • Rayner, K.1
  • 58
    • 0032215040 scopus 로고    scopus 로고
    • Eye movements in reading and information processing: 20 years of research
    • Rayner K. Eye movements in reading and information processing: 20 years of research. Psychological Bulletin 124 (1998) 372-422
    • (1998) Psychological Bulletin , vol.124 , pp. 372-422
    • Rayner, K.1
  • 59
    • 0030188779 scopus 로고    scopus 로고
    • Mindless reading revisited: Eye movements during reading and scanning are different
    • Rayner K., and Fischer M.H. Mindless reading revisited: Eye movements during reading and scanning are different. Perception & Psychophysics 58 (1996) 734-747
    • (1996) Perception & Psychophysics , vol.58 , pp. 734-747
    • Rayner, K.1    Fischer, M.H.2
  • 60
    • 0038569943 scopus 로고    scopus 로고
    • The E-Z Reader model of eye-movement control in reading: Comparisons to other models
    • Reichle E.D., Rayner K., and Pollatsek A. The E-Z Reader model of eye-movement control in reading: Comparisons to other models. Behavioral and Brain Sciences 26 (2003) 445-526
    • (2003) Behavioral and Brain Sciences , vol.26 , pp. 445-526
    • Reichle, E.D.1    Rayner, K.2    Pollatsek, A.3
  • 61
    • 29944444506 scopus 로고    scopus 로고
    • Some empirical tests of an interactive activation model of eye movement control in reading
    • Reilly R.G., and Radach R. Some empirical tests of an interactive activation model of eye movement control in reading. Cognitive Systems Research 7 (2006) 34-55
    • (2006) Cognitive Systems Research , vol.7 , pp. 34-55
    • Reilly, R.G.1    Radach, R.2
  • 63
    • 0036884317 scopus 로고    scopus 로고
    • The brainstem control of saccadic eye movements
    • Sparks D.L. The brainstem control of saccadic eye movements. Nature Reviews Neuroscience 3 12 (2002) 952-964
    • (2002) Nature Reviews Neuroscience , vol.3 , Issue.12 , pp. 952-964
    • Sparks, D.L.1
  • 64
    • 11144343233 scopus 로고    scopus 로고
    • Visual correlates of fixation selection: Effects of scale and time
    • Tatler B.W., Baddeley R.J., and Gilchrist I.D. Visual correlates of fixation selection: Effects of scale and time. Vision Research 45 5 (2005) 643-659
    • (2005) Vision Research , vol.45 , Issue.5 , pp. 643-659
    • Tatler, B.W.1    Baddeley, R.J.2    Gilchrist, I.D.3
  • 65
    • 33344464967 scopus 로고    scopus 로고
    • The long and the short of it: Spatial statistics at fixation vary with saccade amplitude and task
    • Tatler B.W., Baddeley R.J., and Vincent B.T. The long and the short of it: Spatial statistics at fixation vary with saccade amplitude and task. Vision Research 46 12 (2006) 1857-1862
    • (2006) Vision Research , vol.46 , Issue.12 , pp. 1857-1862
    • Tatler, B.W.1    Baddeley, R.J.2    Vincent, B.T.3
  • 66
    • 0018878142 scopus 로고
    • A feature-integration theory of attention
    • Treisman A., and Gelade G. A feature-integration theory of attention. Cognitive Psychology 12 (1980) 97-136
    • (1980) Cognitive Psychology , vol.12 , pp. 97-136
    • Treisman, A.1    Gelade, G.2
  • 67
    • 33645016514 scopus 로고    scopus 로고
    • Between-object and within-object saccade programming in a visual search task
    • Vergilino-Perez D., and Findlay J.M. Between-object and within-object saccade programming in a visual search task. Vision Research 46 (2006) 2204-2216
    • (2006) Vision Research , vol.46 , pp. 2204-2216
    • Vergilino-Perez, D.1    Findlay, J.M.2
  • 68
    • 0035184589 scopus 로고    scopus 로고
    • Fixation location effects on fixation durations during reading: An inverted optimal viewing position effect
    • Vitu F., McConkie G.W., Kerr P., and O'Regan J.K. Fixation location effects on fixation durations during reading: An inverted optimal viewing position effect. Vision Research 41 (2001) 3513-3533
    • (2001) Vision Research , vol.41 , pp. 3513-3533
    • Vitu, F.1    McConkie, G.W.2    Kerr, P.3    O'Regan, J.K.4
  • 69
    • 0029281329 scopus 로고
    • Mindless reading: Eye movement characteristics are similar in scanning strings and reading text
    • Vitu F., O'Regan J.K., Inhoff A.W., and Topolski R. Mindless reading: Eye movement characteristics are similar in scanning strings and reading text. Perception & Psychophysics 57 (1995) 352-364
    • (1995) Perception & Psychophysics , vol.57 , pp. 352-364
    • Vitu, F.1    O'Regan, J.K.2    Inhoff, A.W.3    Topolski, R.4
  • 70
    • 0025008064 scopus 로고
    • Optimal landing position in reading isolated words and continuous text
    • Vitu F., O'Regan J.K., and Mittau M. Optimal landing position in reading isolated words and continuous text. Perception & Psychophysics 47 (1990) 583-600
    • (1990) Perception & Psychophysics , vol.47 , pp. 583-600
    • Vitu, F.1    O'Regan, J.K.2    Mittau, M.3
  • 71
    • 33645078931 scopus 로고    scopus 로고
    • Linguistic and nonlinguistic influences on the eyes' landing positions during reading
    • White S.J., and Liversedge S.P. Linguistic and nonlinguistic influences on the eyes' landing positions during reading. Quarterly Journal of Experimental Psychology 59 4 (2006) 760-782
    • (2006) Quarterly Journal of Experimental Psychology , vol.59 , Issue.4 , pp. 760-782
    • White, S.J.1    Liversedge, S.P.2
  • 73
    • 0014190240 scopus 로고
    • The effects of target specification on objects fixated during visual search
    • Williams L.G. The effects of target specification on objects fixated during visual search. Acta Psychologica 27 (1967) 355-360
    • (1967) Acta Psychologica , vol.27 , pp. 355-360
    • Williams, L.G.1
  • 74
    • 0037314268 scopus 로고    scopus 로고
    • Moving towards solutions to some enduring controversies in visual search
    • Wolfe J.M. Moving towards solutions to some enduring controversies in visual search. Trends in Cognitive Science 7 (2003) 70-76
    • (2003) Trends in Cognitive Science , vol.7 , pp. 70-76
    • Wolfe, J.M.1
  • 76
    • 0030200957 scopus 로고    scopus 로고
    • Using eye saccades to assess the selectivity of search movements
    • Zelinsky G.J. Using eye saccades to assess the selectivity of search movements. Vision Research 36 (1996) 2177-2187
    • (1996) Vision Research , vol.36 , pp. 2177-2187
    • Zelinsky, G.J.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.