Smagulov, Ye. N.
Article History
Received: 29 September 2020
Revised: 18 January 2021
Accepted: 1 April 2021
First Online: 14 August 2021
COMPLIANCE WITH ETHICAL STANDARDS
: <i>Conflict of interests</i>. The author declares that he has no conflict of interests.
: <i>Statement on the welfare of humans or animals</i>. This article does not contain any studies involving animals performed by the author.