Luminescence and Crystallographic Sites of Eu2+ in KNaCa2(PO4)2
WANG Zhi-Jun, LI Yan, WANG Ying, LI Pan-Lai, GUO Qing-Lin, YANG Zhi-Ping
Journal of Inorganic Materials . 2011, (7): 731 -734 .  DOI: 10.3724/SP.J.1077.2011.00731