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- [22] RARE PARTICLES OF VLT LT BASALTS IN LUNA-16 AND LUNA-20 REGOLITH GEOKHIMIYA, 1992, (09): : 1292 - 1302
- [23] TRACE-ELEMENTS IN LAND PLANTS - CONCENTRATION RANGES AND ACCUMULATORS OF RARE-EARTHS, BA, RA, MN, FE, CO AND HEAVY HALOGENS JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES, 1987, 112 (02): : 489 - 506
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- [27] NEW DATA ON THE DISTRIBUTION OF TRACE-ELEMENTS (ESPECIALLY RARE-EARTHS) IN THE CARBONATED FORMATIONS OF THE MINING AREA OF BLEIDA (ANTI-ATLAS, MOROCCO) COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II, 1986, 303 (07): : 603 - 608
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