@book{21085,
	author = {SCHITTKOWSKI, Klaus},
	title = {Nonlinear programming codes.Vol.183 /},
	publisher = {Springer-Verlag,},
	year = {1980.},
	address = {Berlin :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=21085}
}