WebElements: Dysprosium WebElements: Dysprosium: Extensive information on history, uses, occurrence, compounds, and properties. (Dysprosium) http://www.webelements.com/webelements/elements/text/Dy/key.html
Lenntech: Dysprosium Lenntech: Dysprosium: Physical data, chemical properties, health and environmental effects. (Dysprosium) http://www.lenntech.com/Periodic-chart-elements/Dy-en.htm
EnvironmentalChemistry.com: Dysprosium EnvironmentalChemistry.com: Dysprosium: Atomic structure, chemical and physical properties, and table of nuclides. (Dysprosium) http://environmentalchemistry.com/yogi/periodic/Dy.html
Dysprosium Dysprosium: Data tables and history. (Dysprosium) http://www.scescape.net/~woods/elements/dysprosium.html
ChemGlobe: Dysprosium ChemGlobe: Dysprosium: Electronic, thermal, and steric data along with an isotope table. (Dysprosium) http://www.vcs.ethz.ch/chemglobe/ptoe/_/66.html