1. Department of Integrative Biology, University of Texas at Austin, Austin, Texas 78712, USA
2. Faculty of Physics, M.V. Lomonosov Moscow State University, 119991 Moscow, Russia
3. Institut Camille Jordan, UMR 5208 CNRS, University Lyon 1, 69622 Villeurbanne, France
4. INRIA Team Dracula, INRIA Lyon La Doua, 69603 Villeurbanne, France
5. Peoples Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russian Federation