@inproceedings{sgem2015s4082, title = {MINERALOGICAL-CHEMICAL LIMITS OF SLOVAK SPATHIC IRON ORES UPGRADING}, author = {Slavomir Hredzak}, 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/b11/s4.082} }