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- [34] DOUBLE PHOSPHATES, ARSENATE AND VANADATES OF RARE-EARTH ELEMENTS - SCANDIUM AND YTTRIUM WITH ALKALI-METALS DOKLADY AKADEMII NAUK SSSR, 1981, 256 (04): : 878 - 881
- [40] EFFECT OF PH MEDIUM ON PROCESS OF FLOTATION ELIMINATION OF ALKALINE-EARTH METALS UKRAINSKII KHIMICHESKII ZHURNAL, 1976, 42 (05): : 532 - 534