TY  - JOUR 
T1  - Soda-lime glass with gradient of refraction index (GRIN)
JO  - Brazilian Journal of Physics
A1  - Paião, J. R. B.
A1  - Pereira, F.
A1  - Watanabe, S.
SN  - 0103-9733
UL  - 10.1590/S0103-97332001000100014
VL  - 31 
Y1  - 2001
PB  - Brasil 
ER  -