@book{20881,
	author = {KOSECKI, A. and SZEMPLIŃSKA-STUPNICKA, W.},
	title = {Zmodyfikowana metoda Ritza badania drgań /},
	year = {1980.},
	address = {Warszawa,},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=20881}
}