- Visual Elements: Dubnium - http://www.chemsoc.org/viselements/pages/dubnium.html
- Image, general and physical information, and key isotopes.
- ChemicalElements.com: Dubnium - http://www.chemicalelements.com/elements/db.html
- Diagram of its atomic structure, and basic information.
- It's Elemental: Dubnium - http://education.jlab.org/itselemental/ele105.html
- Basic physical and historical information.
- EnvironmentalChemistry.com: Dubnium - http://environmentalchemistry.com/yogi/periodic/db.html
- Atomic structure, physical properties, and table of nuclides.
- Lenntech: Dubnium - http://www.lenntech.com/periodic-chart-elements/db-en.htm
- Physical data and chemical properties.
- LANL: Dubnium - http://periodic.lanl.gov/elements/105.html
- Basic information, history, and isotopes.
- ChemGlobe: Dubnium - http://partisans.spurious.biz/~pkremer/projects/chemglobe/ptoe/_/105.html
- Electronic data along with an isotope table and basic facts.
- WebElements: Dubnium - http://www.webelements.com/webelements/elements/text/db/key.html
- Information on history, isolation, and properties.
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