Institution: | a Faculty of Mathematics and Mechanics, St. Petersburg State University, Universitetsky pr. 28, St. Petersburg 198504, Russia b Department of Mechanical Engineering, Eindhoven University of Technology, POB 513, 5600MB, Eindhoven, The Netherlands c CITEDI-IPN, Av. del Parque 1310, Mesa de Otay, Tijuana, 22510, BC, Mexico |