Ndungu, P., Nechaev, A., Khotseng, L., Onyegebule, N., Davids, W., Mohammed, R., Vaivars, G., & Linkov, V. (2010). Carbon-nanostructured materials for energy generation and storage applications. South African Journal of Science, 105(7/8). https://sajs.co.za/article/view/10284