@book{23149,
	author = {SZEMPLIŃSKA-STUPNICKA, Z.},
	title = {The 1/2 subharmonic resonance and ITS transition... /},
	year = {1986.},
	address = {Warszawa,},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=23149}
}