@book{50549,
	author = {RONSTEIN, B.},
	title = {Bin ich egentlich echt deutsch? :},
	publisher = {Knaur,},
	year = {1992.},
	address = {München :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=50549}
}