@article{CMH_1982__57_139894,
     author = {Howard Hiller},
     title = {Combinatories and intersections of {Schubert} varieties.},
     journal = {Commentarii mathematici Helvetici},
     pages = {41--59},
     publisher = {mathdoc},
     volume = {57},
     year = {1982},
     zbl = {0501.14030},
     url = {http://geodesic.mathdoc.fr/item/CMH_1982__57_139894/}
}