@book{9053,
	author = {BALCKE, Edgar and HEISTERBERG, Joachim},
	title = {HF-und Verstärkertechnik :},
	year = {1969.},
	address = {Berlin,},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=9053}
}