@inproceedings{sgem2007paper,
  title = {NEW APPROACHES AND SOLUTIONS FOR DETERMINATION OF HYDRAULIC RESISTANCES IN PE-HD PIPELINES FOR GAS DISTRIBUTION SYSTEMS},
  author = {Рњ. Boiadjiev and M. Harizanov},
  booktitle = {7th International Scientific Conference - SGEM2007},
  year = {2007},
  pages = {},
  publisher = {SGEM Scientific GeoConference},
  doi = {}
}