@proceedings{sgem2013be5v1,
  title = {13th International Multidisciplinary Scientific GeoConference SGEM 2013, Ecology, Environmental Economics, Education, and Legislation, Vol. 13, Book 5, Volume 1},
  author = {International authors},
  year = {2013},
  publisher = {STEF92 Technology},
  isbn = {},
  doi = {10.5593/sgem2013/be5.v1}
}