@article{EMJ_2014_5_4_a0,
     author = {M. Akel and H. Begehr},
     title = {Schwarz problem for first order elliptic systems in unbounded sectors},
     journal = {Eurasian mathematical journal},
     pages = {6--24},
     publisher = {mathdoc},
     volume = {5},
     number = {4},
     year = {2014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EMJ_2014_5_4_a0/}
}