@proceedings{sgem202131,
  title = {21st International Multidisciplinary Scientific GeoConference SGEM 2021, Water Resources, Forest, Marine and Ocean Ecosystems, Vol. 21, Issue 3.1},
  author = {International authors},
  year = {2021},
  publisher = {STEF92 Technology},
  isbn = {},
  doi = {10.5593/sgem2021/3.1}
}