@article{05555853, title = {Projections of singular vectors of Verma modules over rank 2 Kac-Moody Lie algebras.}, journal = {SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]}, volume = {4}, year = {2008}, doi = {10.3842/SIGMA.2008.059}, zbl = {1218.17014}, language = {en}, url = {http://dml.mathdoc.fr/item/05555853} }
Fuchs, Dmitry; Wilmarth, Constance. Projections of singular vectors of Verma modules over rank 2 Kac-Moody Lie algebras.. SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only], Tome 4 (2008) . doi : 10.3842/SIGMA.2008.059. http://gdmltest.u-ga.fr/item/05555853/