@article{DE_1969_5_5_a7,
     author = {N. V. Azbelev and R. K. Ragimkhanov and L. N. Fadeeva},
     title = {Integral equations with a discontinuous operator},
     journal = {Differencialʹnye uravneni\^a},
     pages = {862--873},
     publisher = {mathdoc},
     volume = {5},
     number = {5},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1969_5_5_a7/}
}