by (United Kingdom)W.E.Parry;by (United States)A.O.Barut; by (United Kingdom)R.E.Parker;by (United States)D.F.Falk; by (United Kingdom)C.Edwards;by (United States)A.G.Moat; by (United Kingdom)N.A.Parris;by (United States)L.P.Jackson; by (United Kingdom)N.E.Parker;by (United States)G.B.Ryvicki; by (United Kingdom)A.Sharp;by (United States)A.L.Sonka; by (United Kingdom)W.R.Ashby;by (United States)F.Csaki; by (United Kingdom)S.E.Barndt;by (United States)E.Turban; by (United Kingdom)W.M.Darley;by (United States)L.A.Peterson; by (United Kingdom)L.K.Su;by (United States)A.Oosenbrug;