@article{DE_1965_1_7_a3,
     author = {A. N. Erugin},
     title = {Analytic structure of the solution of the equation $(2.5)$},
     journal = {Differencialʹnye uravneni\^a},
     pages = {896--902},
     publisher = {mathdoc},
     volume = {1},
     number = {7},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1965_1_7_a3/}
}