@book{118887,
	author = {K�onig, Klaus and Weick, Friedhelm. and ebrary, Inc.},
	title = {Owls of the world},
	publisher = {Christopher Helm,},
	year = {2008.},
	series = {Helm identification guides},
	address = {London :},
	edition = {2nd ed.},
	note = {Digital editions published 2010.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10511473}
}