@article{Tsymbalova2014on,
author={Tsymbalova, O..},
title={On calculation of rotation of vector fields using the formula POINCARE},
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={468-468},
volume={2},
issue={4},
}