00281nam a2200109Ia 4500008004100000020001500041082001500056100001700071245004700088260002800135300000800163250402s9999    xx            000 0 und d  a9392131097  a530bTRI-M  aTRIPATHI D.N 0aMATHEMATICAL PHYSICS & NEWTONION MECHANICS  bKEDARNATH RAMNATHc2024  a647