@article{DE_1994_30_3_a10,
     author = {V. I. Prokhorenko},
     title = {On the analyticity of periodic solutions of differential equations with singular points. {II}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {439--443},
     publisher = {mathdoc},
     volume = {30},
     number = {3},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1994_30_3_a10/}
}