@book{11720,
	author = {Hirschfeld, Kurt},
	title = {Konstruktiver Ingenieurbau /},
	publisher = {Werner-Verlag,},
	year = {1967.},
	address = {Düsseldorf :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=11720}
}