Birch stands of the Eastern Polissya: structure, health condition and productivity Journal title: Лісівництво і агролісомеліорація Authors: A. Zhezhkun Subject(s):
Investigation of Hungarian forest health condition with special respect to climate change Journal title: JOURNAL OF ADVANCES IN AGRICULTURE Authors: Zoltán Pödör, László Kolozs, György Solti Subject(s):