(United Kingdom)C.Morris;by (Federal Republic of Germany)P.Dukas; by (United Kingdom)C.M.Will;by (Federal Republic of Germany)H.Weyl; by (United Kingdom)C.Lanczos;by (Federal Republic of Germany)S.Machado; by (United Kingdom)J.M.Ziman;by (Federal Republic of Germany)P.Bruesch; by (United Kingdom)J.F.Lee;by (Federal Republic of Germany)J.Messer; by (United Kingdom)D.H.Perkins;by (Federal Republic of Germany)A.H.Volkel; by (United Kingdom)J.A.Hudson;by (Federal Republic of Germany)I.A.Kunin; by (United Kingdom)A.C.Rose-Innes;by (Federal Republic of Germany)C.P.Enz; by (United Kingdom)R.Schumann;by (Federal Republic of Germany)J.Haydn; (United Kingdom)B.Coppi...et al; (Federal Republic of Germany)M.Cardona;