AROM, SIMHA (1991). African Polyphony and Polyrhythm. Cambridge Univ Press.

   BRAILOIU, CONSTANTIN (1952). Le rythme aksak. Revue de musicologie XXXIII.

   CHEMILLIER, MARC (2002). Ethnomusicology, Ethnomathematics. The Logic Underlying Orally Transmitted Artistic Practices. Fourth Diderot Forum, European Mathematical Society, Springer Verlag.

   CHEMILLIER, MARC and TRUCHET, CHARLOTTE (2001). Two Musical CSPs. Musical Constraints Workshop, CP’01.

   J. BERSTEL, P. SEEBOLD (2001). Sturmian words. Algebraic combinatorics on Words.

   LOTHAIRE, M. (1983). Combinatorics on Words. Addison-Wesley.