@article{DE_1983_19_10_a1,
     author = {Yu. L. Gaponenko},
     title = {A condition for solvability of quasilinear boundary value problems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1667--1672},
     publisher = {mathdoc},
     volume = {19},
     number = {10},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1983_19_10_a1/}
}