M. N. Lavrov
State University of Education
Russian Federation

Mikhail N. Lavrov - Candidate of Economic Sciences, Associate Professor, Head of the Department of Financial, Economic and Business Education; Associate Professor of the Department of Performing Arts Production of the Gnessin Russian Academy of Music

Moscow 

E. V. Semenkova
State University of Education
Russian Federation

Ekaterina V. Semenkova - senior lecturer of the Department of Financial, Economic and Business Education 

Moscow 

V. E. Vilkov
North-West Management University, Russian Presidential Academy of National Economy and Public Administration
Russian Federation

Vladislav E. Vilkov - lecturer 

Saint Petersburg