Apsidium: Bohrium: Basic information and atomic structure.
Berkeley National Laboratory: Bohrium: An article about an effort to determine the volatility of this element.
Borhium: Historic information.
ChemGlobe: Bohrium: Electronic data along with an isotope table and basic facts.
ChemicalElements.com: Bohrium: Basic information, atomic structure, and isotopes.
EnvironmentalChemistry.com: Bohrium: Atomic structure, chemical and physical properties, and isotopes.
It's Elemental: Bohrium: Basic physical and historical information.
LANL: Bohrium: Basic information and history.
Lenntech: Bohrium: Basic chemical properties.
Visual Elements: Bohrium: Image, source, general and physical information, and ionisation energies.
WebElements: Bohrium: Information on history, isolation, and properties.