TY - JOUR AU - Mansour, Toufik TI - Enumeration of words by the sum of differences between adjacent letters JO - Discrete mathematics & theoretical computer science PY - 2009 VL - 11 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.46298/dmtcs.467/ DO - 10.46298/dmtcs.467 LA - en ID - DMTCS_2009_11_1_a6 ER -