@article{DE_1990_26_2_a24,
     author = {V. P. Kostov},
     title = {Normal forms of systems of linear differential equations with bifurcating {Fuchsian} singularities},
     journal = {Differencialʹnye uravneni\^a},
     pages = {353--356},
     publisher = {mathdoc},
     volume = {26},
     number = {2},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1990_26_2_a24/}
}