Vershubskii, A. V.
Tikhonov, A. N.
Article History
Received: 21 March 2019
Revised: 1 April 2019
Accepted: 8 April 2019
First Online: 15 June 2020
COMPLIANCE WITH ETHICAL STANDARDS
: The authors declare that they have no conflict of interest.
: This article does not contain any studies involving animals or human participants performed by any of the authors.