"male" . . "Printed matter = Drukwerk / Karel Martens, 1996. - . - Internet, telnet : //www konbib. nl, 1997-11-28 (Algemene catalogus KB). - . -"@fr . . . "Graphiste"@fr . "Karel Martens" . . . . . . . . . "Graphiste" . . . . . . . "Graphiste" . . "2013-07-30"^^ . . . . "1997-12-10" . . . . "2013-07-31" . . . "VIAF" . . "Karel Martens"@fr . . . . "Karel" . . . . "0000000078370483" . "1939"^^ . . . . "13478439"^^ . . . . . "Martens" . .