TY - JOUR AU - Toshihisa Kubo TI - Systems of Differential Operators and Generalized Verma Modules JO - Symmetry, integrability and geometry: methods and applications PY - 2014 VL - 10 UR - http://geodesic.mathdoc.fr/item/SIGMA_2014_10_a7/ LA - en ID - SIGMA_2014_10_a7 ER -