Choi, Jong-Geun, et al. “Synthesis of Nanosized Pd CNT Catalyst by M-Chloroperbenzoic Acid Oxidation Method and Catalytic Hydrogenation Reaction”. Asian Journal of Chemistry, vol. 23, no. 8, May 2011, pp. 3476-80, https://asianpubs.org/index.php/ajchem/article/view/10652.