Gupta, D. K., Singh, S., Sharma, L. N. and Agrawal, V. P. (2009) “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, pp. 43–44. doi: 10.3126/jncs.v23i0.2095.