00979nam0-22003251i-450-9900009838104033210-306-41196-5000098381FED01000098381(Aleph)000098381FED0100009838120000920d1983----km-y0itay50------baengCollective Excitations in SolidsProceedings of the NATO Advanced Study Institute held June 15-29, 1981, in Erice, ItalyEdited by Baldassare Di BartoloNew YorkPlenum Press1983LondonNATO ASI seriesSeries BPhysics88EccitazioneSolidi530.41Di Bartolo,Baldassare45060Danko,JosephITUNINARICAUNIMARCBK99000098381040332132C-05012299FI1FI1Collective Excitations in Solids353544UNINAING01