@book{50609,
	author = {BORGEN, Johan},
	title = {Die dunklen Quellen :},
	publisher = {S. Fischer/Goverts,},
	year = {1980.},
	address = {Frankfurt am Main :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=50609}
}