Ryazan
MarshubaDennisА. Ryazan State University named for S. Yesenin, 46 Svobody St., Ryazan 390000, Russiadenmars@mail.ru
JayrunovStanislavN.Ryazan State University named for S. Yesenin, 46 Svobody St., Ryazan 390000, Russia stas4587@mail.ru
ErlikhsonIrinaM.Ryazan State University named for S. Yesenin, 46 Svobody St., Ryazan 390000, Russia i.erlihson@365.rsu.edu.ru
ZholudovMikhailV.Ryazan State University named for S. Yesenin, 46 Svobody St., Ryazan 390000, Russiamikhailzhol@yandex.ru