by (United States)I.Gyarmati;by (United Kingdom)H.J.Kreuzer; by (United States)H.Spear;by (United Kingdom)H.D.Spear; by (United States)R.Jordania;by (United Kingdom)C.Krone; by (United States)I.Satake;by (United Kingdom)R.J.Silvaster; by (United States)J.Kestin;by (United Kingdom)J.F.Lee; by (United States)K.Seifert;by (United Kingdom)H.S.Harris; by (United States)S.Datz;by (United Kingdom)H.Massey; by (United States)D.Gray Rn.;by (United Kingdom)H.Davenport; by (United States)E.Kreyszig;by (United Kingdom)R.J.Leigh; by (United States)I.Tomek;by (United Kingdom)N.Willis;