by L. D. Landau and E. M. Lifshitz ; translated from the Russian by J. B. Sykes and M. J. Kearsley. by L.D. Landau and E.M. Lifshitz ; translated from the Russian by J.B. Sykes and M.J. Kearsley. by L. D. Landau and E. M. Lifshitz ; translated from the Russian by J. B. Sykes and J. S. Bell. by L. D. Landau and E. M. Lifshitz ; translated from the Russian by J. B. Sykes and W. H. Reid. by L. D. Landau and E. M. Lifshitz. ; translated from the Russian by J. B. Sykes and W. H. Red. by L. D. Landau and E. M. Lifshitz ; translated from the Russian by J. B. Sykes, J. S. Bell and M. J. Kearsley. by L.D. Landau and E.M. Lifshitz ; translated from the Russian by J.B. Sykes and J.S. Bell. by L.D. Landau and E.M. Lifshitz ; translated from the Russian by J.B. Sykes, J.S. Bell, and M.J. Kearsley. by E. M. Lifshitz and L. P. Pitaevskii ; translated from the Russian by J. B. Sykes and M. J. Kearsley. L. D. Landau and E. M. Lifshitz ; translated from the Russian by Morton Hamermesh.