@inproceedings{sgem2008paper,
  title = {REGARDING SOME DYNAMIC CHARACTERISTICS OF THE SOILS AND THE LIQUIFACTION POTENTIAL OF SANDS IN SOFIA},
  author = {I. Ivanov},
  booktitle = {8th International Scientific Conference - SGEM2008},
  year = {2008},
  pages = {459-466},
  publisher = {SGEM Scientific GeoConference},
  doi = {}
}