by (USSR)M.S.Feld;by (USSR)V.S.Letokhov;by (United Kingdom)P.G.Harper; by (USSR)L.D.Landau;by (USSR)E.MlLifshitz;by (United Kingdom)A.S.Monon; by (USSR)A.S.Davydov;Tran. by (USSR)D.Ter Haar;by (United Kingdom)G.H.Duffey; by (USSR)I.V.Petrynov;by (United Kingdom)J.G.Stark; by (USSR)A.S.Kompaneyets;by (United Kingdom)E.Leader; by (USSR)A.Starkov;by (United Kingdom)A.Sharp; by (USSR)М.И.Каргаполов;by (USSR)Ю.И.Мерзляков;by (United Kingdom)Г.Лори by (USSR)G.A.Sudzilovstij;by (United Kingdom)P.R.Webb; by (USSR)I.V.Savelyev;by (United Kingdom)T.K.Aun; by (USSR)V.M.Potapov;by (United Kingdom)O.B.Ramasy;