@article{ZNSL_1980_96_a2,
     author = {Ya. I. Belopol'skaya},
     title = {On the first boundary value problem for a~system of quasilinear elliptic equations},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {13--22},
     publisher = {mathdoc},
     volume = {96},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1980_96_a2/}
}