An aperiodicity problem for multiwords

Bruyère, Véronique; Carton, Olivier; Decan, Alexandre; Gauwin, Olivier; Wijsen, Jef

RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Volume 46 (2012) p. 33-50

Periodicity and roots of transfinite strings

Carton, Olivier; Choffrut, Christian

RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Volume 35 (2001) p. 525-533