1. Minerals Information: Beryllium Statistics and Information: Mineral Commodity Summaries. US Geological Survey. Retrieved 11 March, (2013). http://minerals/usgs/gov/minerals/pubs/commodity/beryllium/mcs-2013-beryl.pdf.
2. Federal State Unitary Enterprise “N.M. Fedorovskij All-Russian Scientific Research Institute of Minerals”. Review of Sources of Be Raw Materials, (2013). http://www.vims-geo.ru/elements/beryllium.aspx (in Russian).
3. Materion Brush Inc. Sources of Beryllium, (2013). http://www.beryllium.com/sources-beryllium.
4. Summary of beryllium qualification activity for ITER first-wall applications;Barabash;Phys. Scr.,2011
5. V. Barabash, Chemical composition and some properties of materials for the ITER in-vessel components for type B radioactive waste assessment. Internal ITER document, ITER Document Management (IDM) Number: ITER_D_2DKPK7 v1.3, 24.05. (2010).