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Yterbi Yterbi(III) chlorideTài liệu tham khảo
WikiPedia: Yterbi http://books.google.com/?id=j-Xu07p3cKwC http://www.irm.umn.edu/quarterly/irmq10-3.pdf http://minerals.usgs.gov/minerals/pubs/commodity/r... http://education.jlab.org/itselemental/ele070.html https://www.webelements.com/ytterbium/chemistry.ht... https://commons.wikimedia.org/wiki/Yterbium?uselan...