@inproceedings{sgem2006paper,
  title = {METHODOLOGICAL APPROACH FOR SELECTION OF POTENTIAL REGIONAL LANDFILL SITES ON THE TERRITORY OF BULGARIA},
  author = {KH. Khrischev and V. Georgiev and A. Stoimenov and R. Vatseva and I. Ilieva and M. Toneva and L. Marinova},
  booktitle = {6th International Scientific Conference - SGEM},
  year = {2006},
  pages = {359-367},
  publisher = {SGEM Scientific GeoConference},
  doi = {}
}