Dysprosium
http://en.wikipedia.org/wiki/Dysprosium (Rank: 699585)
http://www.chemicalelements.com/elements/dy.html (Rank: 1439818)
http://education.jlab.org/itselemental/ele066.html (Rank: 2143043)
http://www.webelements.com/webelements/elements/text/Dy/key.html (Rank: 2158573)
http://www.lenntech.com/Periodic-chart-elements/Dy-en.htm (Rank: 2160621)
http://periodic.lanl.gov/elements/66.html (Rank: 2161149)
http://environmentalchemistry.com/yogi/periodic/Dy.html (Rank: 2306732)
http://www.chemsoc.org/viselements/pages/dysprosium.html (Rank: 2390828)
http://partisans.spurious.biz/~pkremer/projects/chemglobe/ptoe/_/66.html (Rank: 2824277)