@conference {2075,
	title = {The Winter Social System of Sombre Tits Parus lugubris in N. Greece},
	booktitle = {10th International Congress on the Zoogeography and Ecology of Greece and Adjacent Regions},
	year = {2006},
	month = {26-30 June},
	publisher = {Hellenic Zoological Society, Hellenic Ornithological Society, Hellenic Ministry of Rural Development, Section of Animal Biology (Dept. Of Biology, Univ. of Patras)},
	organization = {Hellenic Zoological Society, Hellenic Ornithological Society, Hellenic Ministry of Rural Development, Section of Animal Biology (Dept. Of Biology, Univ. of Patras)},
	address = {Patras},
	keywords = {lugubrious, Parus, Parus lugubrious, Poecile, Poecile lugubrious, social, Sombre Tits, system, winter, Κλειδωνάς, κοινωνικός, σύστημα, χειμώνα},
	author = {Panayotopoulou, M and K{\"a}llander, H and Nilsson, J}
}
