00762nam0-22002891i-450-99000028382040332120001010000028382FED01000028382(Aleph)000028382FED0100002838220001010d--------km-y0itay50------baitay-------001yyGradient Index Optics.Erich W. Marchand.New YorkAcademic Press1978X,166 p., ill., 24 cm681Marchand,Erich W.14841ITUNINARICAUNIMARCBK99000028382040332104 044-112IRC 1287/LDINCHDINCHGradient Index Optics119158UNINAING01