Perrot, J.-F. Informatique et algèbre: La théorie des codes à longueur variable. (French) Zbl 0374.94009 Theor. Comput. Sci., 3rd GI Conf., Darmstadt 1977, Lect. Notes Comput. Sci. 48, 27-44 (1977). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 5 Documents MSC: 94B99 Theory of error-correcting codes and error-detecting codes 20M05 Free semigroups, generators and relations, word problems 20M35 Semigroups in automata theory, linguistics, etc. 68Q45 Formal languages and automata PDF BibTeX XML OpenURL