@InProceedings{Gontaszewska-Piekarz:2018,
  author      = "A. Gontaszewska-Piekarz and M. Mrówczyńska",
  title       = "The application of Airborne Laser Scaning for identifying old lignite workings - case study: the mine "Borussia? near Ośno Lubuskie (Western Poland)",
  booktitle   = "4th Nationwide Scientific Conference on Engineering-Infrastructure-Mining - BIG 2018",
  address     = "Kraków, Polska",
  publisher   = "Les Ulis, EDP Sciences",
  volume      = "E3S Web of Conferences, Vol. 36",
  pages       = "1--8",
  year        = "2018",
}