00355nam a2200133Ia 45000030006000000080041000060400015000471000019000622450066000812500010001472600035001575460012001920050017002040STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aDurbin, E.F.M.  aProblems of economic planning paper on planning and economics  aFirst  bRoutledge and Kegan Paulc1963  aEnglish20220125165622.0