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@article{MZM_1987_41_5_a4, author = {K. A. Mirzoev}, title = {Nonquasiregularity of certain quasidifferential operators}, journal = {Matemati\v{c}eskie zametki}, pages = {673--681}, publisher = {mathdoc}, volume = {41}, number = {5}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1987_41_5_a4/} }
K. A. Mirzoev. Nonquasiregularity of certain quasidifferential operators. Matematičeskie zametki, Tome 41 (1987) no. 5, pp. 673-681. http://geodesic.mathdoc.fr/item/MZM_1987_41_5_a4/