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- [22] Observations on the rare earths, XI: The arc spectrum of yttriumJOURNAL OF THE OPTICAL SOCIETY OF AMERICA AND REVIEW OF SCIENTIFIC INSTRUMENTS, 1922, 6 (02): : 121 - 134Yntema, LFHopkins, BS
- [23] SPECTROPHOTOMETRIC DETERMINATION OF YTTRIUM AND RARE EARTHS IN CAST STEELSANALYTICAL CHEMISTRY, 1962, 34 (07) : 871 - &BORNONG, BJMORIARTY, JL
- [24] PHOTOMETRIC DETERMINATION OF LANTHANUM AND CERIUM IN SALTS OF RARE EARTHS FROM YTTRIUM SUBGROUPUKRAINSKII KHIMICHESKII ZHURNAL, 1971, 37 (08): : 820 - &SANDU, MAPOLUEKTO.NSLAUER, RS
- [25] SEPARATION OF YTTRIUM-GROUP RARE EARTHS FROM GADOLINITE BY ION EXCHANGECHEMICAL ENGINEERING PROGRESS SYMPOSIUM SERIES, 1954, 50 (14): : 7 - 15SPEDDING, FHPOWELL, JE
- [26] SEPARATION OF SCANDIUM FROM YTTRIUM LANTHANUM + RARE EARTHS BY CATION EXCHANGE CHROMATOGRAPHYANALYTICAL CHEMISTRY, 1964, 36 (07) : 1217 - &STRELOW, FWEBOTHMA, CJC
- [27] QUANTITATIVE DETERMINATION OF RARE EARTHS IN YTTRIUM OXIDE BY SPECTROPHOTOLUMINESCENCEANALYTICAL CHEMISTRY, 1968, 40 (01) : 187 - &OZAWA, LTORYU, T
- [28] STRUCTURE STUDY OF BASIC SULFATES OF RARE EARTHS AND YTTRIUMMATERIALS RESEARCH BULLETIN, 1967, 2 (11) : 993 - +BALLESTRACCI, RMARESCHAL, J
- [29] Observations on the rare earths XXXIIIa The basicity of illinium and yttriumJOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1933, 55 : 3121 - 3123Hughes, GHopkins, BS
- [30] DETERMINATION OF YTTRIUM IN RARE EARTHS BY PHOTON ACTIVATION ANALYSISTALANTA, 1969, 16 (11) : 1457 - &LUTZ, GJLAFLEUR, PD