@article {VanTurnhout2007BC,
	title = {{Scale-dependent homogenization: Changes in breeding bird diversity in the Netherlands over a 25-year period}},
	journal = {Biological Conservation},
	volume = {134},
	number = {4},
	year = {2007},
	pages = {505-516},
	author = {{Van Turnhout}, C.~A.~M. and Foppen, R.~P.~B. and Leuven, R.~S.~E.~W. and Siepel, H. and Esselink, H.}
}