O. G. Grishutkin
Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences
Russian Federation

A. I. Kotkin
Mordovian State Pedagogical Institute named after M. E. Evsevyev
Russian Federation

I. S. Sokolova
Mordovian State Pedagogical Institute named after M. E. Evsevyev
Russian Federation

A. R. Yambushev
Mordovian State Pedagogical Institute named after M. E. Evsevyev
Russian Federation

E. V. Kozlova
Mordovian State Pedagogical Institute named after M. E. Evsevyev
Russian Federation

E. N. Artemova
Mordovian State Pedagogical Institute named after M. E. Evsevyev
Russian Federation

V. V. Gorokhova
Palace of Creativity for Children and Youth
Russian Federation