%0 Journal Article %A B. M. Doubrov %A B. P. Komrakov %A T. Morimoto %T Equivalence of holonomic differential equations %J Lobachevskii journal of mathematics %D 1999 %P 39-71 %V 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/LJM_1999_3_a2/ %G en %F LJM_1999_3_a2