edited by Ortrud Westheider and Michael Philipp ; exhibition, Dietmar Elger, Ortrud Westheider, with Valerie Hortolani ; with contributions by Janice Bretz, [and 7 others]..Gerhard Richter : abstraction /.,.
edited by Ortrud Westheider and Michael Philipp ; exhibition, Dietmar Elger, Ortrud Westheider, with Valerie Hortolani ; with contributions by Janice Bretz, [and 7 others]..,.
exhibition and catalog, Ortrud Westheider and Alla Chilova ; edited by Ortrud Westheider, Michael Philipp, and Henning Schaper ; with contributions by Olga Atroshchenko, [and 7 others].Impressionism in Russia : dawn of the avant-garde /.,.
Impressionism in Russia : dawn of the avant-garde /
exhibition and catalog, Ortrud Westheider and Alla Chilova ; edited by Ortrud Westheider, Michael Philipp, and Henning Schaper ; with contributions by Olga Atroshchenko, [and 7 others].,.
