@article{DE_1967_3_12_a13,
     author = {B. P. Bogoslovskii and A. I. Yablonskii},
     title = {Systems of differential equations with algebraic moving singular points},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2135--2143},
     publisher = {mathdoc},
     volume = {3},
     number = {12},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1967_3_12_a13/}
}