by (United States)P.R.Halmos;by (United States)T.Kato; by (United States)L.A.Hill;by (United States)L.A.Hill; by (United States)P.J.Hilton;by (United Kingdom)D.G.Northcott; by (United States)J.E.Hamilton;by (United States)N.Hawthorne; by (United States)J.D.Walton;by (United States)J.H.Reyner; by (United States)J.D.Hart;by (United States)P.B.High; by (United States)P.M.Roget;by (United States)R.Soule; by (United States)P.Hall;by (United States)P-L.Hsu; by (United States)P.L.Henneguin;by (United States)M.Loeve; by (United States)P.R.Abramson;by (United States)A.Ranney;