00266nam a2200109Ia 4500008004100000100000900041245004900050260002100099650001200120942000700132999001700139190216s9999||||xx |||||||||||||| ||und||  aNull 0aSangethika Padangal Teliphon Prathishtapanam  bBhasha Institute  aPhysics  cBK  c39889d39889