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100   $a20020821d1977----km-y0itay50------ba
101 0 $aeng
105   $aa-------001yy
200 1 $aInhomogeneous optical waveguides$fM. S. Sodha, A. K. Ghatak
210   $aNew York ; London$cPlenum Press$dc1977
215   $a269 p.$cill.$d24 cm
225 1 $aOptical physics and engineering
610 0 $aFibre ottiche
676   $a621.398'1
700  1$aSodha,$bMahendra Singh
701  1$aGhatak,$bA.K.
801  0$aIT$bUNINA$gRICA$2UNIMARC
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