Simferopol Lomakina Irina N. V. I. Vernadsky Crimean Federal University, 4 Prospekt Vernadskogo, Simferopol, 295007, Russia lomakina254@gmail.com Read more about Lomakina Irina N. VolkonskayaMaria Yu. V. I. Vernadsky Crimean Federal University, 4 Prospekt Vernadskogo, Simferopol, 295007, Russia mvolkonskay@yahoo.com Read more about Volkonskaya Maria Yu.