1. Path factors of a graph;Akiyama,1985
2. Paths, trees, and flowers;Edmonds;Canad. J. Math.,1965
3. Polynomial algorithms for perfect graphs;Grőtschel,1984
4. Scheduling, matching, and coloring;Hell;Colloq. Math. Soc. Janos Bolyai,1978
5. On the completeness of a generalized matching problem;Kirkpatrick;Proc. Tenth Annual ACM Symposium on Theory and Computing,1978