Selvarengan, P. “Density Functional Theory Reactivity Studies on X3N@C80 (X = Sc, Gd, Lu) Fullerenes”. Asian Journal of Chemistry 33, no. 4 (March 20, 2021): 814–818. Accessed May 4, 2024. https://asianpubs.org/index.php/ajchem/article/view/33_4_19.