@article{DE_1987_23_12_a17,
     author = {V. P. Gavrin and G. I. Kabak},
     title = {A boundary value problem that admits discontinuous solutions},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2154--2157},
     publisher = {mathdoc},
     volume = {23},
     number = {12},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1987_23_12_a17/}
}