@article{DAN_1989_304_1_a3,
     author = {V. I. Kachalov and S. A. Lomov},
     title = {Analytic properties of solutions of differential equations with},
     journal = {Doklady Akademii Nauk},
     pages = {22--24},
     publisher = {mathdoc},
     volume = {304},
     number = {1},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1989_304_1_a3/}
}