- Danny Z. Chen, D. T. Lee, editors, Computing and Combinatorics, 12th Annual International Conference, COCOON 2006, Taipei, Taiwan, August 15-18, 2006, Proceedings. Volume 4112 of Lecture Notes in Computer Science, Springer, 2006.
- 21st Annual IEEE Conference on Computational Complexity (CCC 2006), 16-20 July 2006, Prague, Czech Republic. IEEE Computer Society, 2006.