@article{Fedorova2021principles, author={Fedorova, N.V.}, title={PRINCIPLES OF FORMAL CLASSIFICATION THEORY OF TECHNICAL SYSTEMS: CASE OF ENERGY FACILITIES}, journal={Vestnik of Astrakhan State Technical University. Series: Management, computer science and informatics}, publisher={Astrakhan State Technical University}, year={2021}, pages={7-19}, volume={}, issue={2}, }