Engelhard, G. (1981). Arman, César, Lucio Fontana, Yves Klein, Heinz Mack, Piero Manzoni, Otto Piene, Jean Tiguely, Günther Uecker.
Lua i Stíl Chicago (17ú heag.)Engelhard, Günter. Arman, César, Lucio Fontana, Yves Klein, Heinz Mack, Piero Manzoni, Otto Piene, Jean Tiguely, Günther Uecker. Köln, 1981.
Lua MLA (8ú heag.)Engelhard, Günter. Arman, César, Lucio Fontana, Yves Klein, Heinz Mack, Piero Manzoni, Otto Piene, Jean Tiguely, Günther Uecker. 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.