@inproceedings{sgem2013s21023,
  title = {IDENTIFICATION AND COST VALUATION OF BIODIVERSITY ECONOMIC FUNCTIONS},
  author = {Shirkova, Elena and Shirkov, Eduard},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 13th SGEM GeoConference on ECOLOGY, ECONOMICS, EDUCATION AND LEGISLATION},
  year = {2013},
  pages = {169 - 178 pp},
  publisher = {Stef92 Technology},
  doi = {10.5593/sgem2013/be5.v2/s21.023}
}