00259nam a2200109Ia 4500008004100000100001600041245003500057260002100092650001200113942000700125999001700132190216s9999||||xx |||||||||||||| ||und||  aVinogra Sov 0aVaithyutha Main Churul Chuttal  bBhasha Institute  aPhysics  cBK  c38714d38714