by (Netherlands)M.Fabkas;by (Federal Republic of Germany)M.A.Aizerman; by (Netherlands)J.Cheeger;by (Federal Republic of Germany)O.Forster; by (Netherlands)C.Berge...et al;by (Federal Republic of Germany)M.Aigner; by (Netherlands)N.N.Vakhania; (Federal Republic of Germany)R.M.Aron...et al; by (Netherlands)N.C.Gecknli...et al;by (Federal Republic of Germany)H.J.Nussbaumer; by (United States)C.R.Parish;by (Federal Republic of Germany)M.Lerman; by (United States)M.Aumiaux;by (Federal Republic of Germany)D.F.Barbe; by (United States)E.Seneta;by (Federal Republic of Germany)M.Arato...et al; by (United States)M.M.Zuckerman;by (Federal Republic of Germany)R.S.Freese; by (USSR)L.Stravinsky;by (Federal Republic of Germany)G.Bizet;