@article{FAA_1985_19_3_a5,
     author = {S. I. Gel'fand and S. M. Khoroshkin},
     title = {An algebraic description of some categories of $D_X$-modules},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {56--57},
     publisher = {mathdoc},
     volume = {19},
     number = {3},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1985_19_3_a5/}
}