@inproceedings{sgem2021s21104,
  title = {SHADOW ECONOMY IN OIL AND GAS INDUSTRY AS THREAT TO RUSSIA-S ECONOMIC SECURITY: ISSUES AND OPTIONS},
  author = {Natalia Kirsanova and O. M. Lenkovets and Elizaveta Tkacheva},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 21st SGEM International Multidisciplinary Scientific GeoConference Proceedings 2021, Ecology, Economics, Education and Legislation},
  year = {2021},
  pages = {863-870},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2021/5.1/s21.104}
}