@article{10_1017_S0017089512000110, author = {SCH\"AFER, GISA}, title = {A {GRAPHICAL} {CALCULUS} {FOR} {2-BLOCK} {SPALTENSTEIN} {VARIETIES}}, journal = {Glasgow mathematical journal}, pages = {449--477}, year = {2012}, volume = {54}, number = {2}, doi = {10.1017/S0017089512000110}, url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089512000110/} }