by V. B. Berestetskii, E. M. Lifshitz and L. P. Pitaevskii ; translated from the Russian by J. B. Sykes and J. S. Bell. V. B. Berestetskil, E. M. Lifshitz, L. P. Pitaevskii ; translated from the Russian by J. B. Sykes and J. S. Bell. E. M. Lifshitz, L. P. Pitaevskii ; translated from the Russian by J. B. Sykes and J. S. Bell. by E. M. Lifshitz and L. P. Pitaevskii ; translated from the Russian by J. B. Sykes and M. J. Kearsley. E. M. Lifshitz and L. P. Pitaevskii ; translated from the Russian by J. B. Sykes and R. N. Franklin. by E.M. Lifshitz and L.P. Pitaevskii ; translated from the Russian by J.B. Sykes and R.N. Franklin. 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. Red. 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.