Alahmadi, A., A. Alkathiry, A. Altassan, W. Basaffar, A. Bonnecaze, H. Shoaib, and P. Solé. “Quasi Self-Dual Codes over Non-Unital Rings of Order Six”. Proyecciones (Antofagasta, On Line), vol. 39, no. 4, July 2020, pp. 1083-95, doi:10.22199/issn.0717-6279-2020-04-0066.