Dima Blokh, Danny Segev, Roded Sharan. Approximation Algorithms and Hardness Results for Shortest Path Based Graph Orientations. In Juha Kärkkäinen, Jens Stoye, editors, Combinatorial Pattern Matching - 23rd Annual Symposium, CPM 2012, Helsinki, Finland, July 3-5, 2012. Proceedings. Volume 7354 of Lecture Notes in Computer Science, pages 70-82, Springer, 2012. [doi]
Abstract is missing.