Graded codes by G-sets. - Justo Peralta; Blas Torrecillas (SIGSAM Bull., 1999)

Graded Codes. - Justo Peralta; Blas Torrecillas (Appl. Algebra Eng. Commun. Comput., 2002)

Group convolutional codes. - Sergio Estrada; Juan Ramón García-Rozas; Justo Peralta; E. Sánchez-García (Adv. Math. Commun., 2008)