Gupta, D. K., S. Singh, L. N. Sharma, and V. P. Agrawal. “Group Theoretical Treatment of Substituted Saturated Fullerenes (C<sub>20</sub>H<sub>20-n</sub>X<sub>n</Sub>)”. Journal of Nepal Chemical Society 23 (July 31, 2009): 43–44. Accessed July 16, 2024. https://www.nepjol.info/index.php/JNCS/article/view/2095.