1. Research Institute for Applied Mathematics and Cybernetics, Nizhny Novgorod State University, 10 Uljanova Str., Nizhny Novgorod 603005, Russia
2. Institute for Problems in Mechanics, Russian Academy of Sciences, 101 Prospect Vernadskogo, Moscow 117526, Russia
3. Department of Mechanical, Aerospace, and Nuclear Engineering, Thornton Hall, University of Virginia, Charlottesville, VA 22903-2442, USA