Issue:

№4 2018

УДК / UDK: 82-821
DOI:

https://www.doi.org/10.22455/2541-7894-2018-4-292-296

Author: Andrey A. Astvatsaturov
About the author:

Andrey A. Astvatsaturov (PhD, Associate Professor; Saint-Petersburg State University, Russia)

This email address is being protected from spambots. You need JavaScript enabled to view it.