@article{DE_1965_1_12_a7,
     author = {A. N. Erugin},
     title = {Analytic structure of the solution of the equation $(2.1)$},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1606--1619},
     publisher = {mathdoc},
     volume = {1},
     number = {12},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1965_1_12_a7/}
}