Tamilmani, Venkatachalam, Claude Daul, and Titus Jenny. “Possible Ring Structures of Armchair Single-Walled Carbon Nanotubes”. CHIMIA 60, no. 4 (April 28, 2006): 228. Accessed April 28, 2024. https://www.chimia.ch/chimia/article/view/2006_228.