P. CHELLA PANDIAN. On Covering Radius of Codes Over $R=\mathbb Z_2+u\mathbb Z_2,$ where $u^2=0$ Using Bachoc Distance. International Journal of Mathematics And its Applications, [S. l.], v. 5, n. 4 - C, p. 277–282, 2017. Disponível em: http://ijmaa.in/index.php/ijmaa/article/view/1269. Acesso em: 20 may. 2024.