@article{IM_1995__120_2_144281,
     author = {Boris Feigin and Edward Frenkel},
     title = {Kac-Moody groups and integrability of soliton equations.},
     journal = {Inventiones mathematicae},
     pages = {379--408},
     publisher = {mathdoc},
     volume = {120},
     number = {2},
     year = {1995},
     zbl = {0829.58021},
     url = {http://geodesic.mathdoc.fr/item/IM_1995__120_2_144281/}
}