1. Tungsten. A Treatise on its Metallurgy. Properties and Applications;Smithells,1952
2. Rare Metals Handbook,1961
3. Tungsten. Properties, Chemistry, Technology of the Element, Alloys, and Chemical Compounds;Lassner,1999
4. Zirconium;Miller,1954
5. The Metallurgy of Zirconium;Lustman,1955