Improved approximation algorithm for the feedback set problem in a bipartite tournament

@article{Sasatte2008ImprovedAA,
  title={Improved approximation algorithm for the feedback set problem in a bipartite tournament},
  author={Prashant Sasatte},
  journal={Oper. Res. Lett.},
  year={2008},
  volume={36},
  pages={602-604}
}