@article{Shekhova2023modeling,
author={Shekhova, N.V. and Portunova, A.M.},
title={Modeling of system for categories "challenge", "danger", "threat", "damage", "risk" based on comparison and analysis of their economic content},
journal={Theoretical economics},
publisher={Yaroslavl State Technical University},
year={2023},
pages={86-97},
volume={0},
issue={7},
}