by (United States)H de.Almeida;by (United Kingdom)M.J.C.Echeruo; by (United States)L.Dekker;by (United Kingdom)M.J.D.Powell; by (United States)H.A.C.S.Van;by (United Kingdom)C.J.F.Bottcher; by (United States)H.Keller;by (United Kingdom)M.Kenyon; by (United States)H.P.Baltes;by (United Kingdom)M.Born; by (United States)K.Ellis;by (United Kingdom)M.West; by (United States)L.Childs;by (United Kingdom)M.P.Cohn; by (United States)V.D.Hunt;by (United Kingdom)J.C.Mcveigh; by (United States)C.E.Roberts;by (United Kingdom)M.R.M.Rao; by (United States)J.C.Slater;by (United Kingdom)P.Jorgensen;