198504
Russia, Peterhof,
Universitetskii pr., 28,
Mathematics and Mechanics faculty,
dept. of Computer Science
Natalya B. Ampilova
Assoc.Prof., Dept. of Comp. Sci, St.Petersburg State University,
St. Petersburg, Russia
e-mail: n.ampilova@spbu.ru
Eugene I. Petrenko
St.Petersburg State University
e-mail: JournalDECP@gmail.com
Ruslan Mokaev
St.Petersburg State University
e-mail: JournalDECP@gmail.com
Elena Kudryashova
St.Petersburg State University
e-mail: JournalDECP@gmail.com