共 50 条
[21]
THE DETERMINATION OF LANTHANUM AND YTTRIUM IN TOTAL RARE EARTHS
[J].
INDUSTRIAL LABORATORY,
1962, 28 (06)
:727-727
[23]
Observations on the rare earths, XI: The arc spectrum of yttrium
[J].
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA AND REVIEW OF SCIENTIFIC INSTRUMENTS,
1922, 6 (02)
:121-134
[24]
TELLURIUM OXIDES OF HEAVY ELEMENTS OF RARE EARTHS AND YTTRIUM
[J].
COMPTES RENDUS HEBDOMADAIRES DES SEANCES DE L ACADEMIE DES SCIENCES SERIE C,
1967, 265 (22)
:1254-&
[29]
DETERMINATION OF TRACES OF RARE EARTHS AND YTTRIUM IN TUNGSTEN MINERALS
[J].
INDUSTRIAL LABORATORY,
1971, 37 (04)
:541-&
[30]
DISTRIBUTION OF RARE EARTHS AND YTTRIUM IN BEDROCK OF OCEAN FLOOR
[J].
GEOCHEMISTRY INTERNATIONAL USSR,
1970, 7 (03)
:456-&