The following publications are possibly variants of this publication:
- Approximating Minimum Subset Feedback Sets in Undirected Graphs with ApplicationsGuy Even, Joseph Naor, Baruch Schieber, Leonid Zosin. istcs 1996: 78-88
- Approximating Minimum Feedback Sets and Multicuts in Directed GraphsGuy Even, Joseph Naor, Baruch Schieber, Madhu Sudan. algorithmica, 20(2):151-174, 1998.
- Approximating Minimum Feedback Sets and Multi-Cuts in Directed GraphsGuy Even, Joseph Naor, Baruch Schieber, Madhu Sudan. ipco 1995: 14-28