@article{RSM_2003__61_2_125120,
     author = {Yoshino, M.},
     title = {Riemann-Hilbert problem and solvability of differential equations.},
     journal = {Rendiconti del seminario matematico},
     pages = {183--208},
     publisher = {mathdoc},
     volume = {61},
     number = {2},
     year = {2003},
     zbl = {1072.35140},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RSM_2003__61_2_125120/}
}