%0 Journal Article %A A. M. Vasil'ev %T Linear differential systems and invariant realizations of differential-geometric structures %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1984 %P 22-34 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1984_7_a2/ %G ru %F IVM_1984_7_a2