-
1
-
-
0040345597
-
Quartz thermometer
-
Aug.
-
I. Gorini and S. Sartori, "Quartz thermometer," Rev. Sci. Instrum., vol. 33, pp. 883-884, Aug. 1962.
-
(1962)
Rev. Sci. Instrum.
, vol.33
, pp. 883-884
-
-
Gorini, I.1
Sartori, S.2
-
5
-
-
0023531821
-
A reduced hysteresis, extended range quartz pressure transducer
-
R. W. Ward and E. P. EerNisse, "A reduced hysteresis, extended range quartz pressure transducer," in Proc. 41st Anna. Freq. Contr. Symp., 1987, pp. 344-349.
-
(1987)
Proc. 41st Anna. Freq. Contr. Symp.
, pp. 344-349
-
-
Ward, R.W.1
Eernisse, E.P.2
-
6
-
-
85017209924
-
Doubly rotated thickness mode plate vibrators
-
New York: Academic, ch. 5.
-
A. Ballato, "Doubly rotated thickness mode plate vibrators," in Physical Acoustics, New York: Academic, 1997, vol. XIII, ch. 5.
-
(1997)
Physical Acoustics
, vol.13
-
-
Ballato, A.1
-
8
-
-
33749932429
-
Dual mode operation of temperature and stress compensated crystals
-
J. A. Küsters, M. C. Fischer, and J. G. Leach, "Dual mode operation of temperature and stress compensated crystals," in Proc. 32ndAnna. Freq. Contr. Symp., 1978, pp. 389-397.
-
(1978)
Proc. 32ndAnna. Freq. Contr. Symp.
, pp. 389-397
-
-
Küsters, J.A.1
Fischer, M.C.2
Leach, J.G.3
-
10
-
-
0020236507
-
Temperature compensated SC-cut quartz crystal oscil-lator
-
E. K. Miguel, "Temperature compensated SC-cut quartz crystal oscil-lator," in Proc. 36th Annu. Freq. Contr. Symp., 1982, pp. 576-585.
-
(1982)
Proc. 36th Annu. Freq. Contr. Symp.
, pp. 576-585
-
-
Miguel, E.K.1
-
11
-
-
0002928260
-
Dual mode oscillators with resonators excited on B and C modes
-
A. V. Kosykh, I. V. Abramson, and V. P. Begaev, "Dual mode oscillators with resonators excited on B and C modes," in Proc. IEEE Freq. Contr. Symp., 1994, pp. 578-586.
-
(1994)
Proc. IEEE Freq. Contr. Symp.
, pp. 578-586
-
-
Kosykh, A.V.1
Abramson, I.V.2
Begaev, V.P.3
-
14
-
-
0027001180
-
Two-mode quartz resonators for digital temperature compensated quartz oscillators
-
I. V. Abramson, "Two-mode quartz resonators for digital temperature compensated quartz oscillators," in Proc. IEEE Freq. Contr. Symp., 1992, pp. 442-447.
-
(1992)
Proc. IEEE Freq. Contr. Symp.
, pp. 442-447
-
-
Abramson, I.V.1
-
15
-
-
0031352244
-
SC-cut resonator with reduction of b-mode electrical response
-
R. Bourquin, J. J. Boy, andB. Dulmet, "SC-cut resonator with reduction of b-mode electrical response," in Proc. IEEE Int. Freq. Contr. Symp., 1997, pp. 704-709.
-
(1997)
Proc. IEEE Int. Freq. Contr. Symp.
, pp. 704-709
-
-
Bourquin, R.1
Boy, J.J.2
Dulmet, B.3
-
16
-
-
0020219539
-
A frequency domain reflectometer for quartz resonator investigations
-
C. S. Stone and O. J. Baltzer, "A frequency domain reflectometer for quartz resonator investigations," in Proc. 36th Annu. Freq Contr. Symp., 1982, pp. 321-326.
-
(1982)
Proc. 36th Annu. Freq Contr. Symp.
, pp. 321-326
-
-
Stone, C.S.1
Baltzer, O.J.2
-
17
-
-
33747991390
-
Simultaneous asynchronous oscillations in class-C oscillators
-
M. I. Disman and W. A. Edson, "Simultaneous asynchronous oscillations in class-C oscillators," Proc. IRE, vol. 46, pp. 895-903, 1958.
-
(1958)
Proc. IRE
, vol.46
, pp. 895-903
-
-
Disman, M.I.1
Edson, W.A.2
-
18
-
-
0031381899
-
An inductorless dual-mode crystal oscillator
-
I. Balaz, M. Minarik, and J. Petrek, "An inductorless dual-mode crystal oscillator," in Proc. IEEE Int. Freq. Contr. Symp., 1997, pp. 938-942.
-
(1997)
Proc. IEEE Int. Freq. Contr. Symp.
, pp. 938-942
-
-
Balaz, I.1
Minarik, M.2
Petrek, J.3
-
19
-
-
0031331906
-
A dual-mode oscillator based on narrow-band crystal oscillators with resonator filters
-
Y. Watanabe, H. Sekimoto, S. Goka, and I. Nimi, "A dual-mode oscillator based on narrow-band crystal oscillators with resonator filters," in Proc. IEEE Int. Freq. Contr. Symp., 1997, pp. 932-937.
-
(1997)
Proc. IEEE Int. Freq. Contr. Symp.
, pp. 932-937
-
-
Watanabe, Y.1
Sekimoto, H.2
Goka, S.3
Nimi, I.4
-
20
-
-
33747978885
-
-
U.S. Patent 4872765, (filed Apr. 20, 1983), Oct. 10
-
S. Schodowski, "Dual mode quartz thermometric sensing device," U.S. Patent 4872765, (filed Apr. 20, 1983), Oct. 10, 1989.
-
(1989)
Dual Mode Quartz Thermometric Sensing Device
-
-
Schodowski, S.1
-
21
-
-
0024915689
-
Resonator self-temperature-sensing using a dual-harmonic-mode crystal oscillator
-
S. S. Schodowski, "Resonator self-temperature-sensing using a dual-harmonic-mode crystal oscillator," in Proc. 43rd Annu. Freq. Contr. Symp., 1989, pp. 2-7.
-
(1989)
Proc. 43rd Annu. Freq. Contr. Symp.
, pp. 2-7
-
-
Schodowski, S.S.1
-
23
-
-
0029488845
-
Modulation type dual-mode oscillator intended for micro-chip realization
-
A. V. Kosykh and S. A. Zavjalov, "Modulation type dual-mode oscillator intended for micro-chip realization," in Proc. IEEE Int. Freq. Contr. Symp., 1995, pp. 542-545.
-
(1995)
Proc. IEEE Int. Freq. Contr. Symp.
, pp. 542-545
-
-
Kosykh, A.V.1
Zavjalov, S.A.2
-
24
-
-
33747908876
-
On biharmonic oscillations excitation in an oscillator with two degrees of freedom
-
in Russian ser. Physics, Astronomy
-
V. V. Anisimov, "On biharmonic oscillations excitation in an oscillator with two degrees of freedom" (in Russian), Vestnik MGU, ser. Physics, Astronomy, no. 1, pp. 137-146, 1956.
-
(1956)
Vestnik MGU
, Issue.1
, pp. 137-146
-
-
Anisimov, V.V.1
-
25
-
-
0005037329
-
A multi-mode quartz resonator-thermosensor
-
in Russian, ser. X, Radiocomponenty
-
V. Y Bargin, A. A. Zelensky, and F. F. Kolpakov et al., "A multi-mode quartz resonator-thermosensor" (in Russian), Elect. Tech., ser. X, Radiocomponenty, no. 2, pp. 54-57, 1972.
-
(1972)
Elect. Tech.
, Issue.2
, pp. 54-57
-
-
Bargin, V.Y.1
Zelensky, A.A.2
Kolpakov, F.F.3
-
27
-
-
33747941728
-
Asynchronous oscillations in a two-tank-circuit oscillator with a volt-ampere characteristic approximated by the 7th order polynomial (in Russian)
-
D. P. Tsarapkin and E. P. Stroganova, "Asynchronous oscillations in a two-tank-circuit oscillator with a volt-ampere characteristic approximated by the 7th order polynomial" (in Russian), Radiotech. Elect., vol. 26, no. 11, pp. 2315-2320, 1981.
-
(1981)
Radiotech. Elect.
, vol.26
, Issue.11
, pp. 2315-2320
-
-
Tsarapkin, D.P.1
Stroganova, E.P.2
-
28
-
-
0005091747
-
Dual-mode digitally compensated crystal oscillator
-
in Russian
-
V. P. Bagaev, A. V. Kosykh, A. N. Lepetaev, and V. F. Samoylenko, "Dual-mode digitally compensated crystal oscillator" (in Russian), Electrosvyaz, no. 3, pp. 48-51, 1986.
-
(1986)
Electrosvyaz
, Issue.3
, pp. 48-51
-
-
Bagaev, V.P.1
Kosykh, A.V.2
Lepetaev, A.N.3
Samoylenko, V.F.4
-
29
-
-
0024884394
-
Resonators for the microcomputer compensated crystal oscillator
-
R. L. Filler and J. R. Vig, "Resonators for the microcomputer compensated crystal oscillator," in Proc. 43rd Annu. Freq. Contr. Symp., 1989, pp. 8-15.
-
(1989)
Proc. 43rd Annu. Freq. Contr. Symp.
, pp. 8-15
-
-
Filler, R.L.1
Vig, J.R.2
-
30
-
-
0024911705
-
The microcomputer compensated crystal oscillator (MCXO)
-
M. Bloch, M. Meirs, and J. Ho, "The microcomputer compensated crystal oscillator (MCXO)," in Proc. 43rd Annu. Freq. Contr. Symp., 1989, pp. 16-19.
-
(1989)
Proc. 43rd Annu. Freq. Contr. Symp.
, pp. 16-19
-
-
Bloch, M.1
Meirs, M.2
Ho, J.3
-
31
-
-
0024917322
-
A microcomputer-compensated crystal oscillator using a dual-mode resonator
-
A. Benjaminson and S. C. Stallings, "A microcomputer-compensated crystal oscillator using a dual-mode resonator," in Proc. 43rd Annu. Freq. Contr. Symp., 1989, pp. 20-26.
-
(1989)
Proc. 43rd Annu. Freq. Contr. Symp.
, pp. 20-26
-
-
Benjaminson, A.1
Stallings, S.C.2
-
32
-
-
0024902531
-
Frequency-temperature and aging performance of microcomputer compensated crystal oscillators
-
R. L. Filler, J. A. Messina, and V. J. Rosati, "Frequency-temperature and aging performance of microcomputer compensated crystal oscillators," in Proc. 43rd Annu. Freq. Contr. Symp., 1989, pp. 27-33.
-
(1989)
Proc. 43rd Annu. Freq. Contr. Symp.
, pp. 27-33
-
-
Filler, R.L.1
Messina, J.A.2
Rosati, V.J.3
-
33
-
-
0024902532
-
Low power timekeeping
-
M. Bloch, M. Meirs, J. Ho, J. R. Vig, and S. S. Schodowski, "Low power timekeeping," in Proc. 43rd Annu. Freq. Contr. Symp., 1989, pp. 34-36.
-
(1989)
Proc. 43rd Annu. Freq. Contr. Symp.
, pp. 34-36
-
-
Bloch, M.1
Meirs, M.2
Ho, J.3
Vig, J.R.4
Schodowski, S.S.5
-
34
-
-
0030399030
-
The microcomputer compensated crystal oscillator-A progress report, in
-
E. Jackson, H. Phillips, and B. E. Rose, "The microcomputer compensated crystal oscillator-A progress report," in Proc. IEEE Int. Freq. Contr. Symp., 1996, pp. 687-692.
-
(1996)
Proc. IEEE Int. Freq. Contr. Symp.
, pp. 687-692
-
-
Jackson, E.1
Phillips, H.2
Rose, B.E.3
-
35
-
-
0032305962
-
-
Y. Kim, B. Rose, T. Schuyler, and J. R. Vig, "Hysteresis measurements of 20 MHz third overtone SC-cut MCXO resonators," in Proc. IEEE Int. Freq. Contr. Symp., 1998, pp. 126-129.
-
(1998)
Proc. IEEE Int. Freq. Contr. Symp.
, pp. 126-129
-
-
Kim, Y.1
Rose, B.2
Schuyler, T.3
Vig, J.R.4
Resonators, H.M.5
-
36
-
-
0033315763
-
The microprocessor compensated crystal oscillator-New developments
-
E. Jackson and B. E. Rose, "The microprocessor compensated crystal oscillator-New developments," in Proc. IEEE Int. Freq. Contr. Symp., 1999, pp. 376-379.
-
(1999)
Proc. IEEE Int. Freq. Contr. Symp.
, pp. 376-379
-
-
Jackson, E.1
Rose, B.E.2
-
37
-
-
0033352537
-
Experimental studies of noise in a dual mode oscillator
-
H. Ascarrunz, F. L. Walls, E. S. Ferre-Pikal, D. Tsarapkin, and J. Vig, "Experimental studies of noise in a dual mode oscillator," in Proc. IEEE Int. Freq. Contr. Symp., 1999, pp. 1163-1167.
-
(1999)
Proc. IEEE Int. Freq. Contr. Symp.
, pp. 1163-1167
-
-
Ascarrunz, H.1
Walls, F.L.2
Ferre-Pikal, E.S.3
Tsarapkin, D.4
Vig, J.5
-
38
-
-
0020234165
-
Dual-mode digitally temperature compensated crystal oscillator
-
R. Rubach, "Dual-mode digitally temperature compensated crystal oscillator," in Proc. 36th Annu. Freq. Contr. Symp., 1982, pp. 571-575.
-
(1982)
Proc. 36th Annu. Freq. Contr. Symp.
, pp. 571-575
-
-
Rubach, R.1
-
39
-
-
33747898997
-
-
U.S. Patent 4468634, (filed Nov. 17, 1981), Aug. 28
-
M. Takagi and E. Momosaki, "Crystal oscillator producing two frequencies by means of amplitude modulation and demodulation," U.S. Patent 4468634, (filed Nov. 17, 1981), Aug. 28, 1984.
-
(1984)
Crystal Oscillator Producing Two Frequencies by means of Amplitude Modulation and Demodulation
-
-
Takagi, M.1
Momosaki, E.2
-
40
-
-
33747908173
-
Quartz tuning fork crystal using overtone flexure modes
-
S. S. Chuang, "Quartz tuning fork crystal using overtone flexure modes," in Proc. 35th Annu. Freq. Contr. Symp., 1981, pp. 130-143.
-
(1981)
Proc. 35th Annu. Freq. Contr. Symp.
, pp. 130-143
-
-
Chuang, S.S.1
-
41
-
-
84981621182
-
Static and dynamic frequency-temperature behavior of singly and doubly rotated, oven-controlled quartz resonators
-
AD-A955718
-
A. Ballato and J. R. Vig, "Static and dynamic frequency-temperature behavior of singly and doubly rotated, oven-controlled quartz resonators," in Proc. 32nd Annu. Symp.Freq. Contr., 1978, AD-A955718, pp. 180-188.
-
(1978)
Proc. 32nd Annu. Symp.Freq. Contr.
, pp. 180-188
-
-
Ballato, A.1
Vig, J.R.2
-
42
-
-
0029345058
-
Temperature stable crystal oscillator
-
July
-
J. R. Vig and R. L. Filler, "Temperature stable crystal oscillator," IEEE Trans. Ultrason., FerroelecL, Freq. Contr., vol. 42, pp. 797-799, July 1995.
-
(1995)
IEEE Trans. Ultrason., FerroelecL, Freq. Contr.
, vol.42
, pp. 797-799
-
-
Vig, J.R.1
Filler, R.L.2
-
44
-
-
0002811176
-
Internal heating and thermal regulation of bulk quartz resonators
-
J.-P. Valentin, "Internal heating and thermal regulation of bulk quartz resonators," in Proc. 34th Annu. Freq. Contr. Symp., 1980, pp. 194-201.
-
(1980)
Proc. 34th Annu. Freq. Contr. Symp.
, pp. 194-201
-
-
Valentin, J.-P.1
-
45
-
-
0020227736
-
Reducing SAW oscillator temperature sensitivity with digital compensation
-
A. J. Slobodnik, Jr., R. D. Colvin, G. A. Roberts, and J. H. Suva, "Reducing SAW oscillator temperature sensitivity with digital compensation," in Proc. 36th Annu. Freq. Contr. Symp., 1982, pp. 486-491.
-
(1982)
Proc. 36th Annu. Freq. Contr. Symp.
, pp. 486-491
-
-
Slobodnik Jr., A.J.1
Colvin, R.D.2
Roberts, G.A.3
Suva, J.H.4
-
47
-
-
0024011927
-
A 300 MHz digitally compensated SAW oscillator
-
W. D. Cowan, A. J. Slobodnik Jr., G. A. Roberts, and J. H. Suva, "A 300 MHz digitally compensated SAW oscillator," IEEE Trans. Ultrason., FerroelecL, Freq. Contr., vol. 35, pp. 380-385, 1988.
-
(1988)
IEEE Trans. Ultrason., FerroelecL, Freq. Contr.
, vol.35
, pp. 380-385
-
-
Cowan, W.D.1
Slobodnik Jr., A.J.2
Roberts, G.A.3
Suva, J.H.4
-
49
-
-
0023531821
-
A reduced hysteresis, extended range quartz pressure transducer
-
R. W. Ward and E. P. EerNisse, "A reduced hysteresis, extended range quartz pressure transducer," in Proc. 41st Annu. Freq. Contr. Symp., 1987, pp. 344-349.
-
(1987)
Proc. 41st Annu. Freq. Contr. Symp.
, pp. 344-349
-
-
Ward, R.W.1
Eernisse, E.P.2
-
50
-
-
84939355104
-
Survey of quartz bulk resonator sensor technologies
-
E. P. EerNisse, R. W. Ward, and R. B. Wiggins, "Survey of quartz bulk resonator sensor technologies," IEEE Trans. Ultrason., FerroelecL, Freq. Contr., vol. 35, pp. 323-330, 1988.
-
(1988)
IEEE Trans. Ultrason., FerroelecL, Freq. Contr.
, vol.35
, pp. 323-330
-
-
Eernisse, E.P.1
Ward, R.W.2
Wiggins, R.B.3
-
51
-
-
0002751855
-
Stress compensated orientations for thickness-shear quartz resonators
-
B. K. Sinha, "Stress compensated orientations for thickness-shear quartz resonators," in Proc. 35th Annu. Freq. Contr. Symp., 1981, pp. 213-221.
-
(1981)
Proc. 35th Annu. Freq. Contr. Symp.
, pp. 213-221
-
-
Sinha, B.K.1
-
53
-
-
0024771232
-
Experimental verification of stress compensation in the SBTC-cut
-
M. Valdois, B. K. Sinha, and J.-J. Boy, "Experimental verification of stress compensation in the SBTC-cut," IEEE Trans. Ultrason., Permelect., Freq. Contr., vol. 36, pp. 643-651, 1989.
-
(1989)
IEEE Trans. Ultrason., Permelect., Freq. Contr.
, vol.36
, pp. 643-651
-
-
Valdois, M.1
Sinha, B.K.2
Boy, J.-J.3
-
54
-
-
0027663914
-
A dual-mode thickness-shear quartz pressure sensor
-
R. J. Besson, J. J. Boy, B. Glotin, Y. Jinzaki, B. Sinha, and M. Valdois, "A dual-mode thickness-shear quartz pressure sensor," IEEE Trans. Ultrason. FerroelecL Freq. Contr., vol. 40, pp. 584-591, 1993.
-
(1993)
IEEE Trans. Ultrason. FerroelecL Freq. Contr.
, vol.40
, pp. 584-591
-
-
Besson, R.J.1
Boy, J.J.2
Glotin, B.3
Jinzaki, Y.4
Sinha, B.5
Valdois, M.6
-
55
-
-
0033315804
-
Long-term stability and performance characteristics of crystal gauge at high pressures and temperatures
-
N. Matsumoto, Y Sudo, B. Sinha, and M. Niwa, "Long-term stability and performance characteristics of crystal gauge at high pressures and temperatures," in Proc. IEEE Int. Freq. Contr. Symp., 1999, pp. 1019-1022.
-
(1999)
Proc. IEEE Int. Freq. Contr. Symp.
, pp. 1019-1022
-
-
Matsumoto, N.1
Sudo, Y.2
Sinha, B.3
Niwa, M.4
-
56
-
-
0029301929
-
Frequency-output force sensor using a multimode doubly rotated quartz resonator
-
B. Dulmet, R. Bourquin, and N. Shibanova, "Frequency-output force sensor using a multimode doubly rotated quartz resonator," Sens. Actuators A, vol. 48, pp. 109-116, 1995.
-
(1995)
Sens. Actuators a
, vol.48
, pp. 109-116
-
-
Dulmet, B.1
Bourquin, R.2
Shibanova, N.3
-
57
-
-
0033312242
-
Self-temperature-testing of the quartz resoanant force sensor
-
Y.-G. Dong état., "Self-temperature-testing of the quartz resoanant force sensor," IEEE Trans. Instrum. Meas., vol. 48, pp. 1038-1040, 1999.
-
(1999)
IEEE Trans. Instrum. Meas.
, vol.48
, pp. 1038-1040
-
-
Dong, Y.-G.1
-
58
-
-
0004228051
-
Quartz crystal thermometer
-
W. H. Wade and L. J. Slutsky, "Quartz crystal thermometer," Rev. Sci. Instrum., vol. 33, pp. 212-213, 1962.
-
(1962)
Rev. Sci. Instrum.
, vol.33
, pp. 212-213
-
-
Wade, W.H.1
Slutsky, L.J.2
-
59
-
-
0029520963
-
Microresonator sensor arrays
-
J. R. Vig, R. L. Filler, and Y. Kim, "Microresonator sensor arrays," in Proc. IEEE Int. Freq. Contr. Symp., 1995, pp. 852-869.
-
(1995)
Proc. IEEE Int. Freq. Contr. Symp.
, pp. 852-869
-
-
Vig, J.R.1
Filler, R.L.2
Kim, Y.3
-
60
-
-
33748013412
-
Application of quartz microresonators to uncooled infrared imaging arrays
-
P. W. Kruse and D. S. Skatrud, Eds. New York: Academic, ch. 9
-
J. R. Vig, R. L. Filler, and Y Kim, "Application of quartz microresonators to uncooled infrared imaging arrays," in Uncooled Infrared Imaging Arrays and Systems, P. W. Kruse and D. S. Skatrud, Eds. New York: Academic, 1977, ch. 9, pp. 269-296.
-
(1977)
Uncooled Infrared Imaging Arrays and Systems
, pp. 269-296
-
-
Vig, J.R.1
Filler, R.L.2
Kim, Y.3
-
61
-
-
0030173980
-
Chemical sensor based on quartz microresonators
-
June
-
J. R. Vig, R. L. Filler, and Y Kim, "Chemical sensor based on quartz microresonators," / Microelectromech. Syst., vol. 5, pp. 138-140, June 1996.
-
(1996)
Microelectromech. Syst.
, vol.5
, pp. 138-140
-
-
Vig, J.R.1
Filler, R.L.2
Kim, Y.3
-
62
-
-
0031337055
-
A temperature insensitive quartz microbalance
-
D. E. Pierce, Y Kim, and J. R. Vig, "A temperature insensitive quartz microbalance," in Proc. IEEE Int. Freq. Contr. Symp., 1997, pp. 41-48.
-
(1997)
Proc. IEEE Int. Freq. Contr. Symp.
, pp. 41-48
-
-
Pierce, D.E.1
Kim, Y.2
Vig, J.R.3
-
64
-
-
0033348129
-
Sensing of organic vapor adsorption on gold using a temperature insensitive microbalance
-
Y Kim, "Sensing of organic vapor adsorption on gold using a temperature insensitive microbalance," in Proc. IEEE Int. Freq. Contr. Symp., 1999, pp. 1001-1004.
-
(1999)
Proc. IEEE Int. Freq. Contr. Symp.
, pp. 1001-1004
-
-
Kim, Y.1
-
65
-
-
0032318177
-
Sensing the properties of liquids with doubly rotated resonators
-
Y Kim, J. R. Vig, and A. Ballato, "Sensing the properties of liquids with doubly rotated resonators," in Proc. IEEE Int. Freq. Contr. Symp., 1998, pp. 660-666.
-
(1998)
Proc. IEEE Int. Freq. Contr. Symp.
, pp. 660-666
-
-
Kim, Y.1
Vig, J.R.2
Ballato, A.3
-
66
-
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33747998356
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Quartz oscillator
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in Russian
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L. S. Marjanovsky and G. V Vasetsky, "Quartz oscillator" (in Russian), Bul. Izobr., no. 31, p. 322, 1980.
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(1980)
Bul. Izobr.
, Issue.31
, pp. 322
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Marjanovsky, L.S.1
Vasetsky, G.V.2
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