Parallel Corpus for Indigenous Language Translation: Spanish-Mazatec and Spanish-Mixtec. - Atnafu Lambebo Tonja; Christian Efraín Maldonado Sifuentes; David Alejandro Mendoza Castillo; Olga Kolesnikova; Noé Alejandro Castro-Sánchez; Grigori Sidorov; Alexander F. Gelbukh (CoRR, 2023)