00335nam a2200133Ia 4500008004100000041001200041082001100053100001600064245004800080260004000128300000800168650001200176700001300188221030s9999    xx            000 0 und d  aEnglish  a105.23  aS. L. Gupta 0aQuantum Mechanicscby S. L. Gupta, V. Kumar  bJai prakash Nath Pub.aMeerutc2011  a716  aPhysics  aV. Kumar