@book{30978,
	author = {ESCHENAUER, Hans and OLHOFF, Niels},
	title = {Applied structural mechanics :},
	publisher = {Springer,},
	year = {1997.},
	address = {Berlin [et al.] :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=30978}
}