by (United States)A.Beiser;by (Federal Republic of Germany)S.Haykin; by (United States)A.E.Wier;by (Federal Republic of Germany)B.Bartok; by (United States)W.Hauser;by (Federal Republic of Germany)F.Kuypers; by (United States)B.Booss;by (Federal Republic of Germany)A.Csaszar; by (United States)C.L.Hanon;by (Federal Republic of Germany)J.Haydn; by (United States)W.Greub;by (Federal Republic of Germany)A.Haraux; by (United States)R.S.Pierce;by (Federal Republic of Germany)S.B.Rao; by (United States)G.T.Kurian;by (Federal Republic of Germany)R.Hahn; by (United States)T.S.Moss;by (Federal Republic of Germany)B.R.Nag; by (United States)C.R.Parish;by (Federal Republic of Germany)M.Lerman;