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Copyright responsibility: H. Pchelarova, Z. Petkova
Source: Journal of balkan ecology
Year published: 2005
Volume: 3
Pages: pg. 271-275
ID: LTU090018826
Copyright responsibility: A. Dimitrova, G. Petkova, Z. Petkova
Source: Journal of balkan ecology
Year published: 2008
Volume: 2
Pages: pg. 161-170
ID: LTU090028616
Source: TRAKIA JOURNAL OF SCIENCES
Year published: 2017
Volume: Vol. 15
Pages: pp 93-98
Signature: Сп. 387
ID: LTU090061190
Pages:
