A. A. Gubaidullin
Tyumen Branch of the Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch, Russian Academy of Sciences; University of Tyumen
Russian Federation

Amir A. Gubaidullin, Dr. Sci. (Physics and Mathematics), Full Professor, Leading Researcher, Tyumen Branch of the Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch, Russian Academy of Sciences; Full Professor, Department of Applied and Technical Physics, University of Tyumen 

 Tyumen 

A. V. Pyatkova
Tyumen Branch of the Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch, Russian Academy of Sciences; University of Tyumen
Russian Federation

Anna V. Pyatkova, Cand. Sci. (Physics and Mathematics), Researcher, Tyumen Branch of the Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch, Russian Academy of Sciences; Associate Professor, Department of Fundamental Mathematics and Mechanics, University of Tyumen 

 Tyumen