Käpplinger, Claus. Hansen + Petersen : systems : buildings 1988-1998 / Claus Käpplinger. - Basel : Birkhäuser Verlag, c1998. - 157 pages : illustrations ; 28 cm. ISBN: 3764357339 0817657339 Subjects--Personal Names: Hansen + Petersen--Architects. Subjects--Topical Terms: Architecture, Modern. Dewey Class. No.: 720.922 KAP