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- [23] NUCLEAR APPLICATIONS OF RARE-EARTHS ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1980, 180 (AUG): : 33 - INDE
- [24] THERMODYNAMICS OF RARE-EARTHS IN STEELMAKING METALLURGICAL TRANSACTIONS B-PROCESS METALLURGY, 1976, 7 (03): : 375 - 383
- [27] REACTIONS OF SULFOCHROM AND RARE-EARTHS JOURNAL OF ANALYTICAL CHEMISTRY OF THE USSR, 1975, 30 (10): : 1649 - 1652