00423nam a2200133Ia 4500008004100000020001500041082001600056245011200072260003600184300000800220650001400228650002000242653002700262170901s1973    xx            000 0 und d  a354006155X  a330.18bL39 0aLecture Notes in Econonmics and Mathematical SystemsbOperations Research, Computer Science, Social Science  aNew YorkbSpringer Verlagc1973  a267  aEconomics  aSocial sciences  aMathematical economics