00336nam a2200133Ia 4500008004100000041001200041082001600053100001500069245004600084260003700130300001000167650001500177700001000192221030s9999    xx            000 0 und d  aEnglish  a105.23bGau  aR. K. Gaur 0aEngineering Physicscby R. K. Gaur, Gupta  bDhanpat Rai PubaNew Delhic2003  a64.20  aBB Physics  aGupta