References
- Auslender , A. 1976 . Optimisation: Méthodes Numériques , Paris : Masson .
- Chen , G. Y. , Goh , C. J. and Yang , X. Q. 1998 . The gap function of a convex multicriteria optimization problem . Eur. J. Oper. Res. , 111 : 142 – 151 .
- Hearn , D. W. 1982 . The gap function of a convex program . Oper. Res. Lett. , 1 : 67 – 71 .