Q.  Wang, Plylahan, N., Shelke, M. V., Devarapalli, R. Reddy, Li, M., Subramanian, P., Djenizian, T., Boukherroub, R., and Szunerits, S., ?Nanodiamond particles/reduced graphene oxide composites as efficient supercapacitor electrodes?, Carbon, vol. 68, pp. 175-184, 2014.