1. Aggregation of inequalities in integer programming;Chvátal;Ann. Discrete Math.,1977
2. Algorithmic Graph Theory and Perfect Graphs;Golumbic,1980
3. Regular 0–1 programs;Hammer;Cah. Centre d'Etudes Rech. Opér.,1974
4. Combinatorial Optimization: Networks and Matroids;Lawler,1976
5. Introduction to the Theory of Matroids;von Randow,1975