Guy Even, Joseph Naor, Baruch Schieber, Madhu Sudan. Approximating Minimum Feedback Sets and Multi-Cuts in Directed Graphs. In Egon Balas, Jens Clausen, editors, Integer Programming and Combinatorial Optimization, 4th International IPCO Conference, Copenhagen, Denmark, May 29-31, 1995, Proceedings. Volume 920 of Lecture Notes in Computer Science, pages 14-28, Springer, 1995.
Abstract is missing.