Additional
Information: Canadian Content has no additional information.
Holmium Sites:
Lenntech: Holmium Lenntech: Holmium: Physical data, chemical properties, health and environmental effects. (Holmium) http://www.lenntech.com/Periodic-chart-elements/Ho-en.htm
EnvironmentalChemistry.com: Holmium EnvironmentalChemistry.com: Holmium: Atomic structure, chemical and physical properties, and table of nuclides. (Holmium) http://environmentalchemistry.com/yogi/periodic/Ho.html
ChemGlobe: Holmium ChemGlobe: Holmium: Electronic, thermal, and steric data along with an isotope table. (Holmium) http://www.vcs.ethz.ch/chemglobe/ptoe/_/67.html
WebElements: Holmium WebElements: Holmium: Extensive information on history, uses, occurrence, compounds, and properties. (Holmium) http://www.webelements.com/webelements/elements/text/Ho/key.html
Holmium Holmium: Data tables and historic information. (Holmium) http://www.scescape.net/~woods/elements/holmium.html