The strong perfect-graph conjecture is true for K1, 3-free graphs

@article{Parthasarathy1976TheSP,
  title={The strong perfect-graph conjecture is true for K1, 3-free graphs},
  author={K. R. Parthasarathy and G. Ravindra},
  journal={J. Comb. Theory, Ser. B},
  year={1976},
  volume={21},
  pages={212-223}
}