by (United Kingdom)A.I.Vogel;by (United States)W.Kemp; by (United Kingdom)A.Dodd;by (United States)T.Jech; by (United Kingdom)A.D.Gordon;by (United States)H.Heyer; by (United Kingdom)A.Cotterell;by (United States)W.Mieder; by (United Kingdom)A.J.T.Colin;by (United States)T.Cope; by (United Kingdom)J.Bridge;by (United States)W.E.Boyce; by (United Kingdom)M.R.M.Rao;by (United States)W.T.Reid; by (United Kingdom)A.F.Dyer;by (United States)J.Morrow; by (United Kingdom)A.M.James;by (United States)I.Gyarmati; by (United Kingdom)A.Lande;by (United States)G.Ludwig;