@article{ZAA_1999__18_3_48401,
     author = {Mshimba, Ali Seif},
     title = {The generalized {Riemann-Hilbert} boundary value problem for non-homogeneous polyanalytic differential equation of order  in the {Sobolev} space .},
     journal = {Zeitschrift f\"ur Analysis und ihre Anwendungen},
     pages = {611--624},
     publisher = {mathdoc},
     volume = {18},
     number = {3},
     year = {1999},
     zbl = {0936.30036},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZAA_1999__18_3_48401/}
}