00351nam a2200121Ia 4500008004100000082001100041100005800052245006400110250000800174260003000182300000900212500000800221211019s9999    xx            000 0 und d  a530.15  aArfken, George B. / Weber, Hans J. / Harris, Frank E.  aMathematical Methods For Physicists : A Comprehensive Guide  a7th  aAmsterdambElsevierc2020  a1205  a120