V. G. Durnev
P. G. Demidov Yaroslavl University
Russian Federation

Dr.Sci. (Phys&Math), Professor, Chief of Department of Computer security
& Mathematical methods in IT, Mathematical Faculty,

150008 Yaroslavl, Soyuznaya Str., 144

O. V. Zetkina
P. G. Demidov Yaroslavl University
Russian Federation

Cand.Sci. (Economics), dozent, Department of World Economics and Statistics, Economic Faculty, 

150008 Yaroslavl, Komsomolskaya Str., 3

A. I. Zetkina
P. G. Demidov Yaroslavl University
Russian Federation

Zetkina, Alena Igorevna MS student, Department of World Economics and
Statistics, Economic Faculty,

150008 Yaroslavl, Komsomolskaya Str., 3