TY - CPAPER AU - M. Vassileva AU - D. Sanches AU - D. Altmeyer AU - V. Bravo AU - N. Vassilev TI - SOLUBILIZATION OF NATURAL HYDROXYAPATITE BY LACTIC ACID PRODUCING RHIZOPUS ARRHIZUS IMMOBILIZED IN POLYURETHANE FOAM T2 - 10th International Multidisciplinary Scientific GeoConference SGEM2010 PY - 2010 SP - 773 EP - 780 PB - SGEM Scientific GeoConference ER -