1. A semi-strong perfect graph conjecture;Chvátal,1984
2. V. Chvátal, Star-cutsets and perfect graphs, Technical Report 83.21, School of Computer Science, McGill University, Montreal; J. Combin., Theory Ser. B, in press.
3. C. T. Hoang, On the P4-structure of perfect graphs. II. Odd decompositions, Technical Report 83.20, School of Computer Science, McGill University, Montreal; J. Combin., Theory Ser. B, in press.
4. Normal hypergraphs and the perfect graph conjecture;Lovász;Discrete Math.,1972
5. The strong perfect graph conjecture is true for K1,3-free graphs;Parthasarathy;J. Combin. Theory Ser. B,1976