@book{29639,
	author = {Zienkiewicz, Olgierd Cecil and Taylor, Robert Leroy},
	title = {The finite element method.},
	year = {1991.},
	address = {London,},
	edition = {Ed.4.},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=29639}
}