1. Global Energy Storage Demand for a 100% Renewable Electricity Supply
2. Edenhofer, O.; Pichs-Madruga, R.; Sokona, Y.; Seyboth, K.; Matschoss, P.; Kadner, S.; Zwickel, T.; Eickemeier, P.; Hansen, G.; Schlömer, S. IPCC Special Report on Renewable Energy Sources and Climate Change Mitigation. Prepared By Working Group III of the Intergovernmental Panel on Climate Change; Cambridge University Press: Cambridge, UK, 2011 http://rael.berkeley.edu/old_drupal/node/762 (accessed Aug 2018).
3. Towards greener and more sustainable batteries for electrical energy storage
4. The Catalytic Valorization of Lignin for the Production of Renewable Chemicals
5. Sarkanen, K. V.; Ludwig, C. H. Lignins: Occurrence, Formation, Structure and Reactions; Sarkanen, K. V., Ludwig, C. H., Ed. Wiley-Interscience: New York, 1971; Chapter xxv, pp 870–895.