Before submitting a file, please follow the guidelines given in Instructions for Authors. When your file is ready, please submit it through the START Conference Manager. The deadline for submissions is November 17, 2007.

The accepted extended abstract will be published in a special volume of DMTCS (Discrete Mathematics and Theoretical Computer Science). The authors will retain the right of publishing a full version of their work in another journal. Authors who do intend to publish a full version elsewhere should however make sure that their conference contribution is clearly an extended abstract of this full version.