@inproceedings{sgem2017s29080,
  title = {DEGREE OF USE OF ALTERNATIVE SOURCES FOR ENERGY PRODUCTION FOR THE ECONOMICAL AIMS IN EU COUNTRIES},
  author = {Magdalena Tutak and Jaroslaw Brodny},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Energy and Clean Technologies},
  year = {2017},
  pages = {635-642},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2017h/43/s29.080}
}