@article {41638,
	title = {Intra-and interspecific territorialism in mixed colonies of the Canada Goose Branta canadensis and the Greylag Goose Anser anser},
	journal = {Ornis scandinavica},
	year = {1974},
	pages = {25{\textendash}35},
	author = {Fabricius, Eric and Bylin, Anders and Fern{\"o}, Anders and Rades{\"a}ter, Tommy}
}
