00289nam a2200121Ia 45000030006000000080041000060400015000471000025000622450042000872600009001295460012001380050017001500STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aEdward Cham BErs, J.  aEconomic fluctuations and forecasting  c1961  aEnglish20220125165614.0