@article{FAA_1986_20_2_a3,
     author = {F. G. Malikov and B. L. Feigin and D. B. Fuchs},
     title = {Singular vectors in {Verma} modules over {Kac{\textendash}Moody} algebras},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {25--37},
     year = {1986},
     volume = {20},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1986_20_2_a3/}
}