by (United Kingdom)A.Sharp;by (United States)A.L.Sonka; by (United Kingdom)C.Edwards;by (United States)A.G.Moat; by (United Kingdom)A.Pillay;by (United States)R.Burton; by (United Kingdom)A.Lande;by (United States)G.Ludwig; by (United Kingdom)A.Dodd;by (United States)T.Jech; by (United Kingdom)D.Barton;by (United States)A.R.Surrey; by (United Kingdom)D.Kramer;by (United States)A.I.Miller; by (United Kingdom)W.E.Parry;by (United States)A.O.Barut; by (United Kingdom)M.Malvey;by (United States)A.N.Dyson; by (United Kingdom)A.F.Dyer;by (United States)J.Morrow;