1. Kuhn, H. W., andTucker, A. W.,Nonlinear Programming, Proceedings of Second Berkeley Symposium on Mathematical Statistics and Probability, Edited by J. Neyman, University of California Press, Berkeley, California, 1951.
2. John, F.,Extremum Problems with Inequalities as Subsidiary Conditions, Studies and Essays: Courant Anniversary Volume, Edited by K. O. Friedrichs, O. E. Neugebauer, and J. J. Stoker, John Wiley and Sons (Interscience Publishers), New York, New York, 1948.
3. Geoffrion, A. M.,Duality in Nonlinear Programming: A Simplified Application-Oriented Development, SIAM Review, Vol. 13, pp. 1?36, 1971.
4. Gould, F. J., andTolle, J. W.,A Necessary and Sufficient Qualification for Constrained Optimization, SIAM Journal on Applied Mathematics, Vol. 20, pp. 164?172, 1971.
5. Gould, F. J., andTolle, J. W.,Geometry of Optimality Conditions and Constraint Qualifications, Mathematical Programming, Vol. 2, pp. 1?18, 1972.