@article{Dadykin2017improvement,
author={Dadykin, V.S. and Dadykina, O.V.},
title={Improvement of the contract system in the sphere of purchase based on geological-economic monitoring},
journal={Forestry Engineering Journal},
publisher={FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov},
year={2017},
pages={235-244},
volume={7},
issue={4},
}