00342nam a2200121Ia 4500008004100000082001900041100001600060245002000076260004700096300000800143630002800151650004100179211122s9999||||xx |||||||||||||| ||und||  a500.05 bCUR-C  aNo Author,  0aCurrent Science  bIndian Academy of SciencesaNewdelhic2017  aMay  xPost Graduate Reference  aNATURAL SCIENCE & MATHEMATICSPhysics