00271nam a2200121Ia 45000030006000000080041000060400015000471000020000622450029000822600009001115460012001200050017001320STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aBruening Geroge  aBio chemical experiments  c1970  aEnglish20220125170427.0