@article{FAA_1982_16_2_a5,
     author = {B. L. Feigin and D. B. Fuchs},
     title = {Invariant skew-symmetric differential operators on the line and {Verma} modules over the {Virasoro} algebra},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {47--63},
     publisher = {mathdoc},
     volume = {16},
     number = {2},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1982_16_2_a5/}
}