Séminaire Lotharingien de Combinatoire, B07a (1983).
[Formerly: Publ. I.R.M.A. Strasbourg, 1983, 213/S-06, p.
Jean Berstel and Dominique Perrin
This text provides a survey of the known properties of a class of codes
for which we coined the name "circular". Essentially, it is a class of
codes which allow a unique decoding in terms of circular words.
The paper has finally become
Chapter VII of the book "Theory of Codes" [Academic Press, Orlando,
Fla., 1985] by the authors.