Garbuzov, D. Z.
Ekimov, A. I.
Safarov, V. I.
Article History
Received: 17 November 1970
Revised: 17 November 1970
Accepted: 25 November 1970
First Online: 11 December 2023
CONFLICT OF INTEREST
: The authors of this work declare that they have no conflicts of interest.