BANSAL, A.; BANSAL, N. Note on a Paper of Sharma and Kumar. The Journal of the Indian Mathematical Society, [S. l.], v. 72, n. 1-4, p. 129–130, 2005. Disponível em: https://www.informaticsjournals.com/index.php/jims/article/view/21824. Acesso em: 5 may. 2024.