00358nam a2200109Ia 4500008004100000082002000041100001700061245004800078260005000126300002800176490004400204260421b        |||||||| |||| 00| 0 eng d  a519.91bP799.AT  aPonstein, J.  aApproaches to the theory of optimizationb/  aCambridge:bCambridge University Press,c1980  axii, 205p. Index, Bibl.  aCambridge tracts in Mathematicsv v. 77