TY - JOUR AU - King, Ronald C. AU - Welsh, Trevor A. AU - Van Willigenburg, Stephanie J. TI - Schur positivity of skew Schur function differences and applications to ribbons and Schubert classes JO - Journal of Algebraic Combinatorics PY - 2008 SP - 139 EP - 167 VL - 28 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/JAC_2008__28_1_a4/ LA - en ID - JAC_2008__28_1_a4 ER -