@article{VMUMM_1982_2_a11,
     author = {A. S. Dzhumadil'daev},
     title = {A remark on the space of invariant differential operators},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {49--54},
     year = {1982},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1982_2_a11/}
}