author = { Conroy, Michael J. },

title = { Identification and synthetic modeling of factors affecting American black duck populations },

publisher = {Wildlife Soc.},

keywords = { Nordamerika , Dunkelente , Populationsdynamik , Mathematisches Modell },

year = {2002},

booktitle = {Wildlife monographs ; 150},

booktitle = {Journal of wildlife management ; Supplement ; 66,4},

address = { Bethesda, Md. },

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