Kaliningrad Maltseva Оksana A. Baltic Federal University named after I. Kant, Russia, 236041, Kaliningrad, Nevskiy street, 14 oa_malts@mail.ru Read more about Maltseva Оksana A. VaulinaSvetlanaS. Baltic Federal University named after I. Kant, Russia, 236041, Kaliningrad, Nevskiy street, 14 iiyu@mail.ru Read more about Svetlana S. Vaulina KuksaIrinaYuryevna Baltic Federal University named after I. Kant, Russia, 236041, Kaliningrad, Nevskiy street, 14 IKuksa@kantiana.ru Read more about Kuksa Irina Yuryevna