@inproceedings{sgem2015s3016, title = {CALCULATION OF VARIATION AND ORE-BEARING COEFFICIENTS IN THE PLAVICA EPITHERMAL POLYMETALLIC DEPOSIT, EASTERN MACEDONIA}, author = {Todor Serafimovski}, booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 15th International Multidisciplinary Scientific GeoConference SGEM2015, SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING}, year = {2015}, pages = {}, publisher = {Stef92 Technology}, doi = {10.5593/sgem2015/b13/s3.016} }