by (Federal Republic of Germany)D.V.Dalen;by (United States)W.V.QUINE; by (Federal Republic of Germany)D.F.Barbe;by (United States)D.L.Cannon; by (Federal Republic of Germany)W.G.Berl;by (United States)D.A.Skoog; 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)T.S.Huang;by (United States)L.Levi; by (Federal Republic of Germany)H.A.Bartels;by (United States)D.C.Harris; by (Federal Republic of Germany)C.Faith;by (United States)G.Fuller; by (Federal Republic of Germany)H.Federer;by (United States)G.Kothe; by (Federal Republic of Germany)W.J.J.Rey;by (United States)M.R.Spiegel;