TY - JOUR AU - M.L. Targhetta TI - A Note on a Mixing Problem and the Schützenberger Inequality. JO - Metrika PY - 1990 SP - 155 EP - 161 VL - 37 IS - 3-4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MET_1990__37_3-4_176289/ ID - MET_1990__37_3-4_176289 ER -