@article{JAC_2008__28_1_a4,
     author = {King, Ronald C. and Welsh, Trevor A. and Van Willigenburg, Stephanie J.},
     title = {Schur positivity of skew {Schur} function differences and applications to ribbons and {Schubert} classes},
     journal = {Journal of Algebraic Combinatorics},
     pages = {139--167},
     publisher = {mathdoc},
     volume = {28},
     number = {1},
     year = {2008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JAC_2008__28_1_a4/}
}