@inproceedings{sgem2011s17101, title = {A CASE STUDY ON UTILIZATION OF PRECIPITATION INDICES IN BULGARIA}, author = {Vesselin Alexandrov}, booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2011 11th International Multidisciplinary Scientific GeoConference}, year = {2011}, pages = {}, publisher = {Stef92 Technology}, doi = {10.5593/sgem2011/s17.101} }