@book{9023,
	author = {BORSTELMANN, Peter},
	title = {Handbuch der elektronischen Raumheizung /},
	year = {1970.},
	address = {Heidelberg,},
	edition = {4 erweit. Aufl.},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=9023}
}