Antsiperov, V. E.
Article History
Received: 16 April 2021
Revised: 16 April 2021
Accepted: 16 April 2021
First Online: 21 September 2021
COMPLIANCE WITH ETHICAL STANDARDS
: This article is a completely original work by the author; it has not been previously published and will not be published in other publications.
: The author states that he has no conflict of interest.