Apsidium: Darmstadtium
   Basic information and atomic structure.
   http://www.apsidium.com/elements/110.htm

IUPAC: Darmstadtium
   A note about confirmation of synthesis of the element 110.
   http://www.iupac.org/news/archives/2003/naming110.html

Wikipedia: Darmstadtium
   Basic physical and historical information.
   http://en.wikipedia.org/wiki/Darmstadtium