by (United States)H.A.C.S.Van;by (United Kingdom)C.J.F.Bottcher; by (United States)C.A.Bergman;by (United Kingdom)R.A.Close; by (United States)H.Cohn;by (United Kingdom)R.B.Cooper; by (United States)H de.Almeida;by (United Kingdom)M.J.C.Echeruo; by (United States)C.L.Tolstoy;by (United Kingdom)C.L.N.Tolstoy; by (United States)A.A.Cohen;by (United Kingdom)I.S.Simpson; by (United States)H.Eves;by (United Kingdom)J.V.Grabiner; by (United States)H.F.Mark;by (United Kingdom)D.W.A.Sharp; by (United States)H.P.Baltes;by (United Kingdom)M.Born; by (United States)J.C.Slater;by (United Kingdom)G.K.Woodgate;