TY  - JOUR
AU  - Cohn, Paul M.
AU  - Reutenauer, Christophe
TI  - A Normal Form in Free Fields
JO  - Canadian journal of mathematics
PY  - 1994
SP  - 517
EP  - 531
VL  - 46
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1994-027-4/
DO  - 10.4153/CJM-1994-027-4
ID  - 10_4153_CJM_1994_027_4
ER  -