@article{DE_1996_32_12_a15,
     author = {A. P. Abramov},
     title = {Existence of nonregular points in a model of external debt},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1701--1702},
     publisher = {mathdoc},
     volume = {32},
     number = {12},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1996_32_12_a15/}
}