00270nam a2200121Ia 45000030006000000080041000060400015000471000022000622450026000842600009001105460012001190050017001310STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aVizwanathan, K.S.  aMany Electron problem  c1966  aEnglish20220125170216.0