Valérie Berthé Pierre B. A. Lecomte Michel Rigo Preface to the special issue dedicated to combinatorics, automata and number theory. 1-2 2008 391 Theor. Comput. Sci. 1-2 http://dx.doi.org/10.1016/j.tcs.2007.10.024 db/journals/tcs/tcs391.html#BertheLR08