@article{PMIHES_1985__61__5_0,
     author = {Segal, Graeme and Wilson, George},
     title = {Loop groups and equations of {KdV} type},
     journal = {Publications Math\'ematiques de l'IH\'ES},
     pages = {5--65},
     year = {1985},
     publisher = {Institut des Hautes Etudes Scientifiques},
     volume = {61},
     mrnumber = {783348},
     zbl = {0592.35112},
     language = {en},
     url = {https://www.numdam.org/item/PMIHES_1985__61__5_0/}
}