TY  - CPAPER
AU  - Elena Shirkova
TI  - DIRECT VALUATION OF BIODIVERSITY ECONOMIC FUNCTIONS
T2  - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2011 11th International Multidisciplinary Scientific GeoConference
PY  - 2011
DO  - 10.5593/sgem2011/s22.133
PB  - Stef92 Technology
ER  -