@inproceedings{sgem2020s08072,
  title = {SIGMA-DELTA PHASE LOCKING LOOP FOR GEOPHYSICAL RESEARCH},
  author = {Vadim Zhmud and Yury D. Fomin and Л. Дімітров and Sergei Panov and V. M. Semibalamut},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Informatics, Geoinformatics and Remote Sensing},
  year = {2020},
  pages = {559-566},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2020/2.1/s08.072}
}