%0 Journal Article %A Yoshino, M. %T Riemann-Hilbert problem and solvability of differential equations. %J Rendiconti del seminario matematico %D 2003 %P 183-208 %V 61 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/RSM_2003__61_2_125120/ %G en %F RSM_2003__61_2_125120