@article{DE_1986_22_8_a19,
     author = {A. K. Lopatin},
     title = {Decomposition of systems of linear ordinary differential equations with constant coefficients with respect to the nilpotent component},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1449--1451},
     publisher = {mathdoc},
     volume = {22},
     number = {8},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1986_22_8_a19/}
}