@inproceedings{sgem2012s18v4007,
  title = {GREEN ENERGY ALTERNATIVE},
  author = {Grecu, Eugenia},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2012 12th International Multidisciplinary Scientific GeoConference},
  year = {2012},
  pages = {509 - 514 pp},
  publisher = {Stef92 Technology},
  doi = {10.5593/sgem2012/s18.v4007}
}