00317nam a22000737a 4500100001700000245011500017260007600132700003500208  aVijitha V J.  aRole of Al2O3 content on the physical, optical and spectroscopic properties of barium aluminum borate glasses   aThiruvananthapuram:bDepartment of Physics: University of Kerala,c2011  aDr.I.N.Jawahar and Dr.Santha N