@article{ZNSL_1983_128_a0,
     author = {V. V. Ampilov},
     title = {On the theory of linear ordinary inhomogeneous differential equations},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {6--12},
     publisher = {mathdoc},
     volume = {128},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1983_128_a0/}
}