The Wayback Machine - https://web.archive.org/web/20210317183755/https://www.researchgate.net/profile/Sandrine-Ferre/publication/273258867_Les_Mutations_Consonantiques_en_Breton_une_analyse_declarative/links/54fcb1dc0cf2c3f52422aade/Les-Mutations-Consonantiques-en-Breton-une-analyse-declarative.pdf