@book{36686,
	author = {Potr�c, Matja�z. and Strahovnik, Vojko. and ebrary, Inc.},
	title = {Practical contexts},
	publisher = {Ontos Verlag,},
	year = {2004.},
	address = {Frankfurt ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10729105}
}