Drawing is Another Kind of Language, Kunstmuseum, Ahlen, Germany,

December 6th 1998- January 31st 1999 Group exhibition of American drawings from a New York private collection. With works by Carl Andre,Mel Bochner, Dan Flavin, Eva Hesse, Jasper Johns, Sol Lewitt,

Agnes Martin, Bruce Nauman, Barnett Newman, Ad Reinhardt, Robert Ryman Richard Serra, Richart Tuttle, Cy Twombly and others