@book{23426,
	author = {SEIFART, M.},
	title = {Digitale Schaltungen /},
	publisher = {VEB Verlag Technik,},
	year = {1986.},
	address = {Berlin :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=23426}
}