by (United States)R.Oliver...et al;by (United Kingdom)E.N.Williams; by (United States)R.A.Adey...et al;by (United Kingdom)I.Sinclair; by (United States)K.G.Das...et al;by (United Kingdom)N.S.Allen; by (United States)R.L.Cherry...et al;by (United Kingdom)N.Blake; by (United States)R.Sumner;by (United Kingdom)K.Williams; by (United States)S.B.Jones...et al;by (United Kingdom)W.M.Darley; by (United States)I.Gohberg...et al;by (United Kingdom)J.Heading; by (United States)J.L.Lions...et al;by (United Kingdom)Z.Nitecki; by (United States)D.R.Bassett...et al;by (United Kingdom)R.N.Haward; by (United States)H.Rougier...et al.;by (United Kingdom)J.K.Neufeld;