00301nam a2200133Ia 45000030006000000080041000060400015000471000018000622450027000802500011001072600020001185460012001380050017001500STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aAllen, R.G.D.  aMathematical economics  aSecond  bMacmillanc1964  aEnglish20220125170054.0