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Hagvar S., Sorensen O.J., Lund E., 1990. Nest-box studies on hole-nesting passerines in spruce forest. 1. Effect of nest hole availability on population density // Fauna norv. Ser. C. V. 13. No 1. P. 33-41.
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Hailman E.D., Heilman I.P., Haftorn S., 1989. Siberian Tit Parus cinctus twice build a complete nest in one day // Fauna norv. Ser. C. V. 12. No 2. P. 103-105.
* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.