1. Z. Baranyai, On the factorization of the complete uniform hypergraph. Proc. Erdos Colloquium, Keszthely.
2. Modules unimodulaires;Camion;J. Combinatorial Theory,1968
3. Path, trees and flowers;Edmonds;Canad. J. Math.,1965
4. Submodular functions, matroids and certain polyhedra, in Combinatorial Structures and their Applications;Edmonds,1970
5. A min-max relation for submodular functions on graphs;Edmonds;CORE discussion paper,1976