Drovosekov, A. B.
Kholin, D. I.
Kreinies, N. M.
Article History
Received: 3 March 2020
Revised: 3 March 2020
Accepted: 4 March 2020
First Online: 6 September 2020
ADDITIONAL INFORMATION
: This article was prepared for the special issue dedicated to the centenary of A.S. Borovik-Romanov.