00279nam a2200121Ia 45000030006000000080041000060400015000471000018000622450039000802600009001195460012001280050017001400STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aNavindu Gupta  aConceptual and numerical chemistry  c1999  aEnglish20220125170226.0