author = { Boxall, Peter C. AND Lein, M. Ross },

title = { Feeding Ecology of Snowy Owls (Nyctea scandiaca) Wintering in Southern Alberta },

publisher = {The Arctic Institute of North America},

isbn = {1923-1245},

isbn = {0004-0843},

keywords = { Ecology, Evolution, Behavior and Systematics },

year = {1982},

url = { http://slubdd.de/katalog?TN_libero_mab2 }