Metelev, V. G.
Oretskaya, T. S.
Article History
Received: 28 September 2020
Revised: 10 October 2020
Accepted: 12 October 2020
First Online: 26 April 2021
COMPLIANCE WITH ETHICAL STANDARDS
: The article contains no studies involving animals or humans as subjects of the study.
: The authors declare they have no conflicts of interests.
Free to read: This content has been made available to all.