BAZARAA, M. S., y SHETTY, C. M. (1979):Nonlinear Programming, Wiley.
BAZARAA, M. S., y JARVIS, J. J. (1981):Programación Lineal y Flujo en Redes, Limusa.
GARCIA LAGUNA, J. (1989): «Nota sobre direcciones extremas»,XVIII Reunión Nacional de Est. e I.O. (Santiago de Compostela), pp. 201–205.
GOLDMAN, A. J., y TUCKER, A. W. (1956): «Polyhedral convex cones»,Ann. of Math. Studies, 38, Princeton, pp. 19–40.
GRÜNBAUM, B. (1967):Convex polytopes, Wiley-Interscience.
MARTINI, H. (1989): «Determinig classes of convex bodies by restricted sets of Steiner symetrizations»,Geometriae Dedicata, 30, pp. 247–254.
McMULLEN, P., y SHEPARD, G. C. (1971):Convex polytopes and the upper bound conjecture, Lec. Not. Ser. 3, Cambridge University Press.
MURTY, K. G. (1971): «Adjacency on convex polyhedra»Siam Review, vol. 13, núm. 3, pp. 377–386.
MURTY, K. G. (1983):Linear Programming, Wiley.
STOER, J., y WITZGALL, C. (1970):Convexity and optimization in finite dimension I, Springer-Verlag.