@book{27797,
	author = {ZOUTENDIJK, G.},
	title = {Mathematical Programming Methods /},
	publisher = {North-Holland Publishing Company,},
	year = {1976.},
	address = {Amsterdam :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=27797}
}