1. Automatic Sequences;Allouche,2003
2. Words derivated from Sturmian words;Araújo;Theoret. Comput. Sci.,2005
3. Sturmian words, Lyndon words and trees;Berstel;Theoret. Comput. Sci.,1997
4. Combinatorics on Words: Christoffel Words and Repetition in Words;Berstel,2008
5. Theory of Codes;Berstel,1985