| Optimization | 
| [Bonnans et al., 2003]   | J. F. Bonnans and J. Ch. Gilbert and C. Lemaréchal and C. Sagastizábal (2003). Numerical Optimization. Springer Verlag. | 
| [Hiriart-Urruty and Lemaréchal, 1996]   | J.-B. Hiriart-Urruty and C. Lemaréchal (1996). Convex Analysis and Minimization Algorithms. Springer Verlag, Heidelberg. Two volumes - 2nd printing. | 
| [Lemaréchal, 2001]   | C. Lemaréchal (2001). Lagrangian relaxation. In: M. Jünger and D. Naddef (eds.), Computational Combinatorial Optimization. pp. 115--160. Springer Verlag, Heidelberg. | 
| [Lemaréchal, 2003]   | C. Lemaréchal (2003). The omnipresence of Lagrange. In: 4OR, 1(1):7,25. | 
| [Lemaréchal et al., 1995]   | C. Lemaréchal and A. S. Nemirovskii and Yu.E. Nesterov (1995). New variants of bundle methods. In: Mathematical Programming, 69:111--148. | 
| [Lemaréchal and Renaud, 2001]   | C. Lemaréchal and A. Renaud (2001). A geometric study of duality gaps, with applications. In: Mathematical Programming, 90(3):399--427. | 
| [Lemaréchal and Sagastizábal, 1997]   | C. Lemaréchal and C. Sagastizábal (1997). Variable metric bundle methods_ from conceptual to implementable forms. In: Mathematical Programming, 76(3):393--410. |