"tadadshi ishigaki,Tomoaki Watanabe,naonori sakamoto,Naonori SAKAMOTO,Nobuhiro MATSUSHITA,Masahiro YOSHIMURA","Melt Synthesis of Oxide Phosphors with K2NiF4 Structures: CaLa1-xEuxCaO4",,"J. Mater. Sci.",,"Vol. 43","No. 14","pp. 4749-4752",2008,Dec.