by (Federal Republic of Germany)W.Klingenberg;by (Netherlands)J.Cheeger; by (Federal Republic of Germany)E.Fadell...et al;by (Netherlands)M.Fabkas; by (Federal Republic of Germany)G.Eilenberger;by (United Kingdom)T.D.Lee; by (Federal Republic of Germany)W.P.Weber;by (United States)L.Zechmeister; (Federal Republic of Germany)Y.Alavi...et al;by (Netherlands)O.Brulin...et al; by (Federal Republic of Germany)A.Schoenberg;by (France)C.Saint-Saens; by (Federal Republic of Germany)W.Demtroder;by (United States)M.D.Levenson; by (Federal Republic of Germany)W.J.J.Rey;by (United States)M.R.Spiegel; by (Federal Republic of Germany)W.A.Mozart;by (United States)C.Nielsen; by (Federal Republic of Germany)W.R.Schowalter;by (United States)F.S.Crawford;