Combinatorics 79, Part II

Combinatorics 79, Part I

Algebraic and combinatorial methods in operations research proceedings of the Workshop on Algebraic Structures in Operations Research

Trees and hills methodology for maximizing functions of systems of linear relations

Orders--description and roles in set theory, lattices, ordered groups, topology, theory of models and relations, combinatorics, effectiveness, social sciences : proceedings of the Conference on Ordered Sets and Their Applications, Château de la Tourette, l'Arbresle, July 5-11, 1982 = Ordres--description et rôles : en théorie des ensembles, des treillis, des groupes ordonnés en topologie, théorie des modèles et des relations, combinatoire, effectivité, sciences sociales : actes de la Conférence sur les ensembles ordonnés et leur applications, Château de la tourette, l'Arbresle, juillet 5-11, 1982

Convexity and graph theory proceedings of the Conference on Convexity and Graph Theory, Israel, March 1981

Topics on perfect graphs