1. Faculty of Mathematics and Mechanics, St. Petersburg State University, Peterhof, St. Petersburg, Russia
2. Department of Mathematical Information Technology, University of Jyväskylä, Jyväskylä, Finland
3. State University of New York at Potsdam, USA
4. Institute of Problems of Mechanical Engineering RAS, Russia
5. City University of Hong Kong, Hong Kong SAR, P. R. China