@article{DE_1986_22_2_a2,
     author = {A. Ya. Lepin and L. A. Lepin and V. D. Ponomarev},
     title = {Generalized solvability of nonlinear boundary value problems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {198--203},
     publisher = {mathdoc},
     volume = {22},
     number = {2},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1986_22_2_a2/}
}