共 9 条
[2]
Cummings JP, 1970, AM MINERAL, V55, P90
[6]
LEVIN EM, 1975, PHASE DIAGRAMS CERAM, P106
[7]
RARE-EARTH ACTIVATED NIOBATES
[J].
JOURNAL OF THE ELECTROCHEMICAL SOCIETY,
1984, 131 (05)
:1207-1211