Groups

Herbert Abels, Bielefeld

Rene Kuelheim, Juelich

Peter Abramenko, Bielefeld

Igor Lyssenok, Moscow

Sergej Adian, Moscow

Avinoam Mann, Jerusalem

Helmut Behr, Frankfurt am Main

Jens Mennicke, Bielefeld

Robert Bieri, Frankfurt am Main

Thomas Mueller, London

Martin Bridson, Oxford

G. Noskov, Novosibirsk

Kai-Uwe Bux, Frankfurt am Main

John Parker, Durham

Vladimir Chernousov, Bielefeld

Lawrence Reeves, Oxford

Andreas Dress, Bielefeld

Ulf Rehmann, Bielefeld

Jens Fiedler, Juelich

Bertrand Remy, Nancy

Rostislav Grigorchuk, Moscow

Dan Segal, Oxford

Fritz Grunewald, Duesseldorf

Said Sidki, Brasilia

Heinz Helling, Bielefeld

G. Soifer

Wilfried Imrich, Leoben