Santhosh, N. M., G. Filipič, E. Kovacevic, A. Jagodar, J. Berndt, T. Strunskus, H. Kondo, M. Hori, E. Tatarova, and U. Cvelbar. “N-Graphene Nanowalls via Plasma Nitrogen Incorporation and Substitution: The Experimental Evidence”. Nano-Micro Letters, vol. 12, Feb. 2020, p. 53, doi:10.1007/s40820-020-0395-5.