@article{IIGUM_2019_28_a1,
     author = {M. V. Bulatov and V. F. Chistyakov},
     title = {The index and split forms of linear differential-algebraic equations},
     journal = {The Bulletin of Irkutsk State University. Series Mathematics},
     pages = {21--35},
     year = {2019},
     volume = {28},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IIGUM_2019_28_a1/}
}