N.A. Yaitskaya1, 2
1 Branch of the Institute of Natural and Technical Systems, RF, Sochi, Kurortny Av., 99/18
2 Federal Research Centre the Southern Scientific Centre of the Russian Academy of Sciences, RF, Rostov-on-Don, Chekhov St., 41
E–mail: yaitskayan@gmail.com
DOI: 10.33075/2220-5861-2019-4-50-53
