@inproceedings{sgem2021s0956,
  title = {EFFECTIVE ACCOUNTING FOR VERTICAL REFRACTION IN EDM LEVELING},
  author = {Olga Vshivkova and Igor Kalugi},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 21st SGEM International Multidisciplinary Scientific GeoConference Proceedings 2021, Informatics, Geoinformatics and Remote Sensing},
  year = {2021},
  pages = {451-458},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2021/2.1/s09.56}
}