@article{DE_1967_3_4_a7,
     author = {K. T. Akhmedov and V. F. Vitov},
     title = {Application of a theorem of {Hart} to the investigation of nonlinear integral equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {667--679},
     publisher = {mathdoc},
     volume = {3},
     number = {4},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1967_3_4_a7/}
}