@article{DAN_1965_164_6_a7,
     author = {Ya. D. Mamedov},
     title = {Cauchy limit problem for first- and second-order differential equations with unbounded nonlinear potential operators},
     journal = {Doklady Akademii Nauk},
     pages = {1239--1242},
     publisher = {mathdoc},
     volume = {164},
     number = {6},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1965_164_6_a7/}
}