@proceedings{sgem202061,
  title = {20th International Multidisciplinary Scientific GeoConference SGEM 2020, Nano, Bio, Green and Space Technologies for a Sustainable Future, Vol. 20, Issue 6.1},
  author = {International authors},
  year = {2020},
  publisher = {STEF92 Technology},
  isbn = {},
  doi = {10.5593/sgem2020/6.1}
}