Alain Lascoux and Marcel-Paul Schützenberger. Symmetry and flag manifolds. In Invariant Theory (Montecatini, 1982), volume 996 of Lecture Notes in Math., pages 118–144. Springer-Verlag, Berlin, 1983.

Marcel-Paul Schützenberger. The critical factorization theorem. In Lothaire, Combinatorics on words, volume 17 of Encyclopedia of Math. and its Appl., pages 145–153. Addison-Wesley Publ. Co., Reading, Mass., 1983.

Marcel-Paul Schützenberger. La théorie de l'information. In A. Lichnerowicz, F. Perroux, and G. Gadoffre, editors, Séminaire Interdisciplinaire du Collège de France, Information et communication, pages 11–16. Maloine, Paris, 1983.