@article{DAN_1968_180_4_a0,
     author = {I. M. Gel'fand and A. A. Kirillov},
     title = {The structure of the quotient sfield of the enveloping algebra of a semisimple {Lie} algebra},
     journal = {Doklady Akademii Nauk},
     pages = {775--777},
     publisher = {mathdoc},
     volume = {180},
     number = {4},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1968_180_4_a0/}
}