00265nam a2200121Ia 45000030006000000080041000060400015000471000017000622450026000792600009001055460012001140050017001260STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aKogiku, K.C.  aMicro economic models  c1971  aEnglish20220125170059.0