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Copyright responsibility: A. Stoyanova, I. Gospodinov, R. Petkova
Source: Agricultural science and technology
Year published: 2010
Volume: 3, 2
Pages: pg. 136-138
ID: LTU090037930
Copyright responsibility: M. Dimitrova-Doneva, R. Petkova
Source: Agricultural science and technology
Year published: 2010
Volume: 3, 2
Pages: pg. 139-142
ID: LTU090037931
Copyright responsibility: R. Petkova, V. Margariteva
Source: Trakia journal of sciences
Year published: 2010
Volume: Supplement 3, 8
Pages: pg. 153-158
ID: LTU090042786
Copyright responsibility: K. Nedyalkova, R. Donkova, G. Petkova
Source: Journal of balkan ecology
Year published: 2013
Volume: 4, 16
Pages: pg. 367-373
ID: LTU090049552
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