@article{Kniazevych_Kraychuk_Kraychuk_Ostapchuk_2022, title={Application of the Data Envelopment Analysis method to assess the efficiency of social and economic systems}, volume={31}, url={https://geology-dnu.dp.ua/index.php/GG/article/view/889}, DOI={https://doi.org/10.15421/112208}, number={1}, journal={Journal of Geology, Geography and Geoecology}, author={Kniazevych, Anna and Kraychuk, Alexandr and Kraychuk, Serhii and Ostapchuk, Nataliia}, year={2022}, month={Apr.}, pages={81-88}