Andriyanov, N. A.
Article History
Received: 8 June 2022
Revised: 8 June 2022
Accepted: 8 June 2022
First Online: 19 October 2022
COMPLIANCE WITH ETHICAL STANDARDS
: This article is a completely original work of its authors; it has not been published before and will not be sent to other publications until the <i>PRIA</i> Editorial Board decides not to accept it for publication.
: The author declares that he has no conflicts of interest.