00293nam a2200121Ia 45000030006000000080041000060400015000471000027000622450033000892600020001225460012001420050017001540STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aIngham, A.; Ulph, A.M.  aDemand equilibrium and trade  bMacmillanc1984  aEnglish20220125165608.0