00338nam a2200121Ia 45000030006000000080041000060400015000471000022000622450082000842600021001665460012001870050017001990STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aPerson Ralph, G..  aSymmetry rules for chemical reactions orbital topology and elementary process  bJohn Wileyc1976  aEnglish20220125170317.0