00283nam a2200121Ia 45000030006000000080041000060400015000471000021000622450040000832600009001235460012001320050017001440STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aAlvin Hansen, H.  aBusiness cycles and national income  c1951  aEnglish20220125165701.0