共 6 条
- [1] BITHER TA, TO BE PUBLISHED
- [2] DELAFOSSE D, 1960, CR HEBD ACAD SCI, V251, P2964
- [3] JARRETT HS, TO BE PUBLISHED
- [4] KELLERUD G, 1959, ECON GEOL, V54, P539
- [5] KLEMM DD, 1962, N JB MINER MH, V76
- [6] SIDGWICK NV, 1950, CHEMICAL ELEMENTS TH, V2, P1334