Surface phonons on Pb(111) / I. Y. Sklyadneva, R. Heid, K.-P. Bohnen [et.al.] // Journal of physics: Condensed matter. 2012. Vol. 24, № 10. P. 104004 (1-4). URL: http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000432787