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Copyright responsibility: p. Petkov, G. Antonov
Source: Наука за гората
Year published: 1992
Volume: 3
Pages: p. 7-13
ID: LTU090004433
Copyright responsibility: G. Petkov, G. Kostadinova, V. Barakova
Source: Journal of balkan ecology
Year published: 2004
Volume: 4
Pages: pg. 428-433
ID: LTU090014087
Copyright responsibility: G. Mihaylova, G. Kostadinova, G. Petkov
Source: Agricultural Science and Technology
Year published: 2012
Volume: 3, 4
Pages: pp. 277-284
ID: LTU090043316
Source: Bulgarian journal of veterinary medicine; bul
Year published: 2021
Volume: 24, 3
Pages: 334-343
Signature: Сп I 879
ID: LTU090055787
Pages:
