@inproceedings{sgem2015s19130,
  title = {REGIONALIZATION AND REGIONAL VARIATIONS AND TENDENCIES OF SNOW COVER IN BULGARIA},
  author = {Nadezhda Pentcheva Petkova},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 15th International Multidisciplinary Scientific GeoConference SGEM2015, ENERGY AND CLEAN TECHNOLOGIES},
  year = {2015},
  pages = {},
  publisher = {Stef92 Technology},
  doi = {10.5593/sgem2015/b41/s19.130}
}