@book {0319.90038,
    AUTHOR = {Salkin, Harvey M.},
     TITLE = {Integer programming.},
 PUBLISHER = {Addison-Wesley Publishing Company},
   ADDRESS = {Reading},
      YEAR = {1975},
     PAGES = {xx+537},
      ISBN = {0-201-06841-9},
  BOEKCODE = {90C10},
}