@inproceedings{sgem202161,
  title = {21st International Multidisciplinary Scientific GeoConference SGEM 2021, Nano, Bio, Green and Space Technologies for a Sustainable Future, Vol. 21, Issue 6.1},
  author = {International authors},
  booktitle = {International Multidisciplinary Scientific GeoConference SGEM 2021},
  year = {2021},
  pages = {},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2021/6.1}
}