by (Federal Republic of Germany)E.Grieg;by (United States)C.L.Hanon; by (Federal Republic of Germany)D.F.Barbe;by (United States)D.L.Cannon; by (Federal Republic of Germany)D.Britz;by (United States)H.Bloom; by (Federal Republic of Germany)H.Boll;by (United States)H.Insen; by (Federal Republic of Germany)J.Bourgain;by (United States)P.L.Duren; by (Federal Republic of Germany)C.Faith;by (United States)G.Fuller; by (Federal Republic of Germany)A.Budo;by (United States)E.A.Desloge; by (Federal Republic of Germany)A.Hilbert;by (United States)J.A.Hartigan; by (Federal Republic of Germany)H.A.Bartels;by (United States)D.C.Harris; by (Federal Republic of Germany)H.Ziegler;by (United States)M.W.Zemansky;