@article{Voskovskaya2014some,
author={Voskovskaya, N..},
title={Some theorems on vektor fields on surfaces in r3},
journal={Actual directions of scientific researches of the XXI century: theory and practice},
publisher={FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov},
year={2014},
pages={445-445},
volume={2},
issue={4},
}