1. Annual Energy Outlook 2013, U.S. Energy Information Administration (EIA), DOE/EIA-0383(2013) (Washington, D.C.: DOE, 2013).
2. Power Reactor Information System (PRIS), (International Atomic Energy Agency, IAEA, Vienna, Austria, 2013). http://www.iaea.org/pris/home.aspx .
3. R.B. Rebak, JOM 65, 1021 (2013).
4. S. Bragg-Sitton, Nucl. News 57, 83 (2014).
5. J. Carmack and F. Goldner, J. Nucl. Mater. 448, 373 (2014).