00309nam a2200121Ia 4500008004100000041001200041082001600053100001800069245003900087260003900126300001000165650001200175221030s9999    xx            000 0 und d  aEnglish  a105.23bAgr  aP. K. Agrawal 0aI. I. T. Physicscby P. K. Agrawal  bKrishna PrakashanaNew Delhic1995  a9.292  aPhysics