00324nam a2200133Ia 45000030006000000080041000060400015000471000018000622450051000802500010001312600020001415460012001610050017001730STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aAllen, R.S.D.  aMacro economic theory a mathematical treatment  aFirst  bMacmillanc1973  aEnglish20220125165650.0