@article{IM2_1973_7_6_a7,
     author = {I. V. Skrypnik},
     title = {A regularity condition for generalized solutions of higher-order quasilinear elliptic equations},
     journal = {Izvestiya. Mathematics },
     pages = {1371--1421},
     publisher = {mathdoc},
     volume = {7},
     number = {6},
     year = {1973},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1973_7_6_a7/}
}