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WikiPedia: Dysprosi http://www.britannica.com/EBchecked/topic/175314 http://www.espi-metals.com/msds's/Dysprosium%20Chl... http://www.espi-metals.com/msds's/Dysprosium%20Flu... http://www.espi-metals.com/msds's/Dysprosium%20Oxi... http://www.espi-metals.com/msds's/Dysprosium.htm http://etrema-usa.com/core/terfenold/ http://books.google.com/books?id=F0Bte_XhzoAC http://books.google.com/books?id=Xqj-TTzkvTEC&pg=P... http://www.lenntech.com/Periodic-chart-elements/Dy... http://www.magnetweb.com/Col05.htm