@inproceedings{sgem201821,
  title = {18th International Multidisciplinary Scientific GeoConference SGEM 2018, Geoinformatics, Remote Sensing, and Artificial Intelligence, Vol. 18, Issue 2.1},
  author = {International authors},
  booktitle = {International Multidisciplinary Scientific GeoConference SGEM 2018},
  year = {2018},
  pages = {},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2018/2.1}
}