TY - CPAPER AU - Gheorghe-Adrian Branoiu TI - THE RIETVELD STRUCTURE REFINEMENT OF THE SELENITE GYPSUM FROM VALEA REA (ROMANIA) USING X-RAY POWDER DIFFRACTION DATA T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2012 12th International Multidisciplinary Scientific GeoConference PY - 2012 DO - 10.5593/sgem2012/s01.v1043 PB - Stef92 Technology ER -