@article{Gubina2014the,
author={Gubina, S..},
title={THE SOLUTION OF OPTIMIZATION PROBLEMS BY MEANS OF MATHCAD AND MS EXCEL},
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={268-270},
volume={2},
issue={5},
}