@article{DE_1987_23_6_a11,
     author = {A. G. Zarubin},
     title = {Mixed boundary value problems in a nonsmooth domain for quasilinear equations that contain the biharmonic operator},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1021--1029},
     publisher = {mathdoc},
     volume = {23},
     number = {6},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1987_23_6_a11/}
}