@article{AFST_2009_6_18_3_561_0,
     author = {Gontsov, R.R. and Vyugin, I.V.},
     title = {Some addition to the generalized {Riemann-Hilbert} problem},
     journal = {Annales de la Facult\'e des sciences de Toulouse : Math\'ematiques},
     pages = {561--576},
     publisher = {Universit\'e Paul Sabatier, Institut de math\'ematiques},
     address = {Toulouse},
     volume = {Ser. 6, 18},
     number = {3},
     year = {2009},
     doi = {10.5802/afst.1214},
     zbl = {1200.34110},
     mrnumber = {2582441},
     language = {en},
     url = {http://archive.numdam.org/articles/10.5802/afst.1214/}
}