by (United States)J.J.Sullivan;by (United Kingdom)P.M.Kennedy; by (United States)J.C.Slater;by (United Kingdom)P.Jorgensen; by (United States)J.I.Steinfeid;by (United Kingdom)R.C.Denney; by (United States)H.Keller;by (United Kingdom)M.Kenyon; by (United States)S.J.Mllinsky;by (United Kingdom)J.J.O'Keefe; by (United States)B.Saltzman;by (United Kingdom)P.V.Hobbs; by (United States)J.Callaway;by (United Kingdom)J.M.Cassels; by (United States)J.Kestin;by (United Kingdom)J.F.Lee; by (United States)P.M.Chirlian;by (United Kingdom)R.King; by (United States)D.J.S.Robinson;by (United Kingdom)J.S.Rose;