@book{28214,
	author = {SCHECHTER, M.},
	title = {Operator methods in quantum mechanics /},
	publisher = {North-Holland Publishing Company,},
	year = {1981.},
	address = {New York :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=28214}
}