Thomas Schwentick, Thomas Zeume. Two-Variable Logic with Two Order Relations - (Extended Abstract). In Anuj Dawar, Helmut Veith, editors, Computer Science Logic, 24th International Workshop, CSL 2010, 19th Annual Conference of the EACSL, Brno, Czech Republic, August 23-27, 2010. Proceedings. Volume 6247 of Lecture Notes in Computer Science, pages 499-513, Springer, 2010. [doi]
Abstract is missing.