I. D. Stolbova
Perm National Research Polytechnic University, Perm, Russia
Russian Federation

Dr. Sci. (Engineering), Prof., Head of the Department of design, descriptive geometry and graphics

E. P. Aleksandrova
Perm National Research Polytechnic University, Perm, Russia
Russian Federation

Cand. Sci. (Engineering), Prof. of the Department of design, descriptive geometry and graphics

M. N. Krainova
Perm National Research Polytechnic University, Perm, Russia
Russian Federation

Assoc. Prof. of the Department of design, descriptive geometry and graphics

V. P. Varuskin
Perm National Research Polytechnic University, Perm, Russia
Russian Federation

Senior Lecturer of the Department of design, descriptive geometry and graphics