1. Department of Theoretical Computer Science (TCS), Kungliga Tekniska Hogskolan, 7655 Stockholm, Stockholm Sweden (e-mail: zimin@kth.se)
2. Computer Science, Colorado State University, 3447 Fort Collins, Colorado United States 80523-1019 (e-mail: steve.kommrusch@gmail.com)
3. Computer Science, College of William and Mary, 8604 Williamsburg, Virginia United States 23187-8795 (e-mail: mtufano@email.wm.edu)
4. Computer Science, colorado state university, Fort Collins, Colorado United States (e-mail: pouchet@cs.ucla.edu)
5. Computer Science, William and Mary, Williamsburg, Virginia United States 23188 (e-mail: denys@cs.wm.edu)
6. Department of Theoretical Computer Science (TCS), KTH Royal Institute of Technology, 7655 Stockholm, Stockholm Sweden (e-mail: martin.monperrus@csc.kth.se)