@article{TRSPY_1999_227_a21,
     author = {S. V. Uspenskii and E. N. Vasil'eva and S. I. Yanov},
     title = {Differential {Properties} of the {Solution} to the {First} {Mixed} {Boundary} {Value} {Problem} for the {Sobolev} {System}},
     journal = {Informatics and Automation},
     pages = {311--319},
     publisher = {mathdoc},
     volume = {227},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1999_227_a21/}
}