Changes in composition and structure of breeding bird communities due to successive changes in ecosystems Journal title: Journal of BioScience and Biotechnology Authors: NIKOLAY KARAIVANOV Subject(s):
Zgrupowania ptaków lęgowych zasiedlających parki w Siedlcach pomiędzy rokiem 1968 a 2008 Journal title: KULON Authors: Andrzej Dombrowski Subject(s):