Dubnium

ChemGlobe: Dubnium - Electronic data along with an isotope table and basic facts.
partisans.spurious.biz/~pkremer/projects/chemglobe/ptoe/_/105.html

ChemicalElements.com: Dubnium - Diagram of its atomic structure, and basic information.
www.chemicalelements.com/elements/db.html

EnvironmentalChemistry.com: Dubnium - Atomic structure, physical properties, and table of nuclides.
environmentalchemistry.com/yogi/periodic/Db.html

It's Elemental: Dubnium - Basic physical and historical information.
education.jlab.org/itselemental/ele105.html

LANL: Dubnium - Basic information, history, and isotopes.
periodic.lanl.gov/elements/105.html

Lenntech: Dubnium - Physical data and chemical properties.
www.lenntech.com/Periodic-chart-elements/Db-en.htm

Visual Elements: Dubnium - Image, general and physical information, and key isotopes.
www.chemsoc.org/viselements/pages/dubnium.html