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- [9] Observations on the rare earths XXXVIII Electrolytic production of amalgams of rare earths II Degradation of lanthanum amalgam for the extraction of the free metals ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1933, 211 (03): : 237 - 240
- [10] The separation of rare earths through alkaline precipitation X The presentation of pure ytterbium oxide ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1932, 209 (01): : 13 - 16