Worrell, Ernst, Lenny Bernstein, Joyashree Roy, Lynn K Price, Jochen Harnisch, and Stephane de la Rue du Can. Industrial Energy Efficiency and Climate Change Mitigation. 2009.PDF
Ridgway, Paul L, Frank R McLarnon, and John S Newman. "Sodium/Phosphorus-Sulfur Cells I. Cell Performance." Journal of the Electrochemical Society 143.2 (1996) 406–411.PDF Google Scholar | DOI | BibTeX | Endnote tagged