TY - JOUR AU - C. V. Jensen TI - Linear ODEs and $\mathcal D$-modules, solving and decomposing equations using symmetry methods JO - Lobachevskii journal of mathematics PY - 2005 SP - 149 EP - 212 VL - 17 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/LJM_2005_17_a6/ LA - en ID - LJM_2005_17_a6 ER -