"Congressos i conferències" . . "Operations research Congresses." . . "Operations research , Congresses." . "Kongress Bonn (1977)" . . "Mathematical optimization Congresses." . . "Mathematical optimization , Congresses." . "Ricerca operativa - Congressi - Bonn - 1977." . . "Optimización Matemática Congresos." . . "Operations Research." . . "Operations Research" . "Ottimizzazione (Matematica) - Congressi - Bonn - 1977." . . "Workshop Optimierung und Operations Research (1977.10.02-08 Bonn)" . . . "Optimització matemàtica" . . . . . . . "Optimization and operations research : proceedings of a workshop held at the University of Bonn, Oct. 2-8, 1977"@en . "Optimization and operations research : proceedings of a workshop held at the University of Bonn, Oct. 2-8, 1977" . . "Optimization and operations research, Proceedings of a workshop held at the University of Bonn, Oetober 2-8. 1977" . . . . "Optimization and operations research : proceedings of a workshop held at the University of Bonn, October 2-8, 1977" . . . . "Optimization and operations research : proceedings of a Workshop held at the University of Bonn, October 2 - 8, 1977" . . . "Conference papers and proceedings"@en . "Conference papers and proceedings" . . . "Optimization and operations research : proceedings of a Workshop held at the University of Bonn, October 2-8, 1977" . . . . "Optimization and operations research : proceedings of a workshop; Bonn, October 2-8, 1977" . . . . . . . . . "Optimization and operations research proceedings of a workshop held at the University of Bonn, October 2-8, 1977"@en . "Optimization and operations research proceedings of a workshop held at the University of Bonn, October 2-8, 1977" . . . "Electronic books" . "Optimization and Operations Research : proceedings of a workshop held at the University of Bonn, October 2-8, 1977" . . . "Optimization and operations research. 1977, Proceedings of a workshop held at the University of Bonn, Oct. 2-8, 1977" . . . "Optimization and Operations Research Proceedings of a Workshop Held at the University of Bonn, October 2-8, 1977" . . . . . . . . . . "Optimization and operations research : proceedings of a workshop held at the University of Bonn, Oct. 2-8, 1977, [organized by Institut für Ökonometrie und Operations Research, Universität Bonn]" . . . . "Kongreß" . . . . . . . . . . . . . . . . . . "Programmazione matematica - Congressi - Bonn - 1977." . . "Investigació operativa" . . "Optimierung" . . "Optimierung." . "Kongress." . . "Recherche operationnelle Congres." . . "Recherche opérationnelle Congrès." . "Recherche opérationnelle - Congrès." . "Optimization and operations research (1977 : Bonn)" . . . . . "Investigación Operacional Congresos." . . "Optimisation mathématique Congrès." . . "Optimisation mathématique - Congrès." .