Polynomial-time inference of all valid implications for Horn and related formulae / E. Boros, Y. Crama, P.L. HammerUpper-bounds for quadratic 0-1 maximization / E. Boros, Y. Crama, P.L. HammerWetenschapskritiek : verslag van een seminariesiklus, gehouden aan de K.U.L. tijdens het akademiejaar 1976-1977 voor de Fakulteiten Wetenschappen, Toegepaste Wetenschappen en Landbouwwetenschappen / organisatie en uitg. van het verslag: Werkgroep "Wetenschapskritiek" p/a Ignaas Verpoest ; eindred.: Peter HammerThe satisfiability problem / guest ed.: John V. Franco ... [et al.] $ Boolean functions / guest ed.: Endre Boros, Peter L. HammerDiscrete optimization : the state of the art / ed. by Endre Boros, Peter L. HammerMathematical programming in theory and practice : proceedings of the Nato Advanced study institute, Figueira da Foz, Portugal, June 12-23, 1972 / organized by A.S. Concalves; ed.: P.L. Hammer and G. ZoutendijkStudies in integer programming / edited by P. L. Hammer ... [et al.]Discrete optimization : proceedings of the Advanced Research Institute on Discrete Optimization and Systems Applications of the Systems Science Panel of NATO and of the Discrete Optimization Symposium co-sponsored by IBM Canada and SIAM, Banff, Alta, and Vancouver, B.C., Canada, August 1977 / ed. by P.L. Hammer, E.L. Johnson, B.H. KorteAnnals of discrete mathematics / general ed. Peter L. Hammer