@article{TRSPY_1970_110_a5,
     author = {A. P. Oskolkov},
     title = {Interior estimates of the first derivatives for a certain class of quasilinear elliptic systems},
     journal = {Informatics and Automation},
     pages = {102--106},
     publisher = {mathdoc},
     volume = {110},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1970_110_a5/}
}