N. N. Sergeev
Tula State Pedagogical University named after L.N. Tolstoy
Russian Federation

Nikolay N. Sergeev - Dr. of Sci. (Engineering), Professor, Tula State Pedagogical University named after Lev Tolstoy.
125 Lenin str., Tula 300026.

A. N. Sergeev
Tula State Pedagogical University named after L.N. Tolstoy
Russian Federation

Aleksandr N. Sergeev - Dr. of Sci. (Pedagogical), Professor, Tula State Pedagogical University named after Lev Tolstoy.
125 Lenin str., Tula 300026.

S. N. Kutepov
Tula State Pedagogical University named after L.N. Tolstoy
Russian Federation

Sergey N. Kutepov - Cand of Sci. (Pedagogical), Professor, Tula State Pedagogical University named after Lev Tolstoy.
125 Lenin str., Tula 300026.

I. V. Tikhonova
Tula State University
Russian Federation

Irina V. Tikhonova - Cand of Sci. (Engineering), Associate Professor, Associate Professor of the Metal Physics and Metal Science Department, Tula State University.
92 Lenin str., Tula 300012.

A. E. Gvozdev
Tula State Pedagogical University named after L.N. Tolstoy
Russian Federation

Aleksandr E. Gvozdev - Dr. of Sci. (Engineering), Professor, Tula State Pedagogical University named after Lev Tolstoy.
125 Lenin str., Tula 300026.

E. V. Ageev
Southwest State University
Russian Federation

Evgeniy V. Ageev - Dr. of Sci. (Engineering), Professor, Southwest State University.
50 Let Oktyabrya str. 94, Kursk 305040.

D. S. Klement'yev
Tula State Pedagogical University named after L.N. Tolstoy
Russian Federation

Denis S. Klement'yev - Undergraguate, Tula State Pedagogical University named after Lev Tolstoy.
125 Lenin str., Tula 300026.