Design and operation of flexible manufacturing systems : the kingdom of heuristic methods D. de Werra — 1987 RAIRO - Operations Research - Recherche Opérationnelle
Equitable colorations of graphs D. de Werra — 1971 ESAIM: Mathematical Modelling and Numerical Analysis - Modélisation Mathématique et Analyse Numérique
Partitions of Graphs into Coverings and Hypergraphs into Transversals D. de Werra — 1974 Commentarii mathematici Helvetici
A note on graph coloring D. De Werra — 1974 RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications