@book{16645,
	author = {KOVIRGIN, A. B.},
	title = {Metody obrabotki nabljudenij v navigacjinnych zadacach /},
	year = {1974.},
	address = {Leningrad,},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=16645}
}