00800nam0-22003011i-450-99000050147040332120070926160711.00-12-200650-X000050147FED01000050147(Aleph)000050147FED0100005014720020821d1973----km-y0itay50------baenga-------001yyIntroduction to electron and ion opticsPoul DahlNew York ; LondonAcademic press1973147 p.ill.24 cmOttica elettronicaFascio elettronico537.56Dahl,PoulITUNINARICAUNIMARCBK99000050147040332110 B III 728479DINELDINELUNINA