Rhenium

See also:

ChemGlobe: Rhenium - Electronic, thermal, and steric data along with an isotope table.
ChemicalElements.com: Rhenium - Basic information, atomic structure, and isotopes.
EnvironmentalChemistry.com: Rhenium - Atomic structure, chemical and physical properties, and table of nuclides.
It's Elemental: Rhenium - Basic physical and historical information.
LANL: Rhenium - History, sources, properties, and uses.
Lenntech: Rhenium - Physical data, chemical properties, and health effects.
USGS Minerals Information: Rhenium - Statistics and information on the worldwide supply, demand, and flow of the element (PDF format).
Visual Elements: Rhenium - General and physical information, source, uses, key isotopes, and ionisation energies.
WebElements: Rhenium - Extensive information on history, uses, occurrence, compounds, and properties.
Wikipedia: Rhenium - Properties of the element, including its history, applications, and characteristics.
Radiochemistry of Rhenium - Full text of the monograph by G. W. Leddicotte (Oak Ridge National Laboratory, Oak Ridge, Tennessee). [PDF] (March, 1961)