00441nam a2200157Ia 4500008004100000020001500041082001700056100001600073245008100089260002900170300000700199650001400206650002000220653002700240700001600267170901s1927    xx            000 0 und d  a354006964X  a332.41bF95N  aBackmann, M 0aLecture Hnotes in Economics and Mathematical SystemsbMathematical Economics  aNew YorkbSpringerc1927  a96  aEconomics  aSocial sciences  aMathematical economics  aKunzi, H.P.