@article{SM_2010_201_1_a3,
     author = {A. M. Il'in and Yu. A. Leonychev and O. Yu. Khachay},
     title = {The asymptotic behaviour of the solution to a~system of differential equations with a~small parameter and singular initial point},
     journal = {Sbornik. Mathematics},
     pages = {79--101},
     publisher = {mathdoc},
     volume = {201},
     number = {1},
     year = {2010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2010_201_1_a3/}
}