TY  - SER
AU  - Ghosh,A.K..
TI  - Journal of optics (1991-93) / 
U1  - 535.05 
PY  - 1991///-93
CY  - Kolkata : 
PB  - The Optical Society of India , 
KW  - OPTICS
N1  - Library has :  V.20, no.2-3,1991 V.22, no.1-4,1993; NULL
ER  -