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@article{MZM_1978_24_2_a8, author = {V. M. Zubov}, title = {Closure property of the generalized {Green's} matrices of linear differential operators}, journal = {Matemati\v{c}eskie zametki}, pages = {217--229}, publisher = {mathdoc}, volume = {24}, number = {2}, year = {1978}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1978_24_2_a8/} }
V. M. Zubov. Closure property of the generalized Green's matrices of linear differential operators. Matematičeskie zametki, Tome 24 (1978) no. 2, pp. 217-229. http://geodesic.mathdoc.fr/item/MZM_1978_24_2_a8/