1. Seminaire d'Informatique Théorique;Berstel,1980
2. Thue–Morse sequence and p-adic Technology of free monoid;Berstel,1987
3. Rewriting products of groups elements;Blyth,1987
4. On special factors of the Thue–Morse sequence on three symbols;de Luca;Inform. Process Lett.,1988
5. Combinatorics on Words;Lothaire,1983