@article{MZM_1992_51_2_a1,
     author = {A. A. Bolibrukh},
     title = {On sufficient conditions for the positive solvability of the {Riemann--Hilbert} problem},
     journal = {Matemati\v{c}eskie zametki},
     pages = {9--19},
     publisher = {mathdoc},
     volume = {51},
     number = {2},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1992_51_2_a1/}
}