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- [34] Observations on the seldom earths XVII - Representation of anhydrous iodide of rare earthsZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1937, 235 (1/2): : 62 - 64Taebel, WAHopkins, BS
- [35] The separation of rare earths by the ionic migration methodPROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1925, 11 : 393 - 400Kendall, JClarke, BL
- [36] ACTIVATION ANALYSIS OF RARE EARTHS .I. SEPARATION OF RARE EARTHS FROM ACCOMPANYING ELEMENTSANALYTICA CHIMICA ACTA, 1968, 42 (01) : 7 - &MASSART, DLHOSTE, J
- [37] Observations on the rare earths XXXIII Studies in basicityJOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1933, 55 : 3117 - 3121Sherwood, GRHopkins, BS
- [38] Observations on the rare earths V Holmium and dysprosiumJOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1918, 40 : 593 - 598Kremers, HCBalke, CW
- [39] SEPARATION OF RARE EARTHS FROM THORIUM NITRATEANALYTICAL CHEMISTRY, 1956, 28 (02) : 227 - 229LERNER, MWPETRETIC, GJ
- [40] The separation of europium from other rare earthsJOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1935, 57 : 1756 - 1756McCoy, HN