@inproceedings{sgem201843,
  title = {18th International Multidisciplinary Scientific GeoConference SGEM 2018, Energy and Clean Technologies, Vol. 18, Issue 4.3},
  author = {International authors},
  booktitle = {International Multidisciplinary Scientific GeoConference SGEM 2018},
  year = {2018},
  pages = {},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2018v/4.3}
}