@article{SM_1987_57_2_a5,
     author = {A. A. Dezin},
     title = {On problems for linear differential operations},
     journal = {Sbornik. Mathematics},
     pages = {411--419},
     publisher = {mathdoc},
     volume = {57},
     number = {2},
     year = {1987},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1987_57_2_a5/}
}