1. A. Ben-Tal, A. Ben-Israel and E. Rosinger, “A Helly-type theorem and semi-infinite programming”,Constructive approaches to mathematical models (Academic Press, New York, 1979) pp. 127–135.
2. J.M. Borwein, “Proper efficient points for maximizations with respect to cones”,SIAM Journal on Control and Optimization 15 (1977) 57–63.
3. J.M. Borwein, “The limiting Lagrangean as a consequence of Helly's theorem”, Dalhousie Research Report 7 (1979) (To appear inJ.O.T.A.).
4. J.M. Borwein and H. Wolkowicz, “Convex programming without constraint qualification” (To appear inMathematical Programming).
5. N. Bourbaki,Elément de mathematique: Livre III, Topologie Generale (Paris 1948).