DOLGONOS, G. A.; KRYACHKO, E. S.; NIKOLAIENKO, T. Y. On the Problem of He–He Bond in the Endohedral Fullerene He2@C60. Ukrainian Journal of Physics, [S. l.], v. 63, n. 4, p. 288, 2018. DOI: 10.15407/ujpe63.4.288. Disponível em: https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2018005. Acesso em: 29 mar. 2024.