@proceedings{sgem2014b42,
  title = {14th International Multidisciplinary Scientific GeoConference SGEM 2014, Energy and Clean Technologies, Vol. 14, Book 4, Volume 2},
  author = {International authors},
  year = {2014},
  publisher = {STEF92 Technology},
  isbn = {},
  doi = {10.5593/sgem2014/b42}
}