@article{JRAM_1984__347_152598,
     author = {Nolan R. Wallach and Roe Goodman},
     title = {Structure and unitary cocycle representations of loop groups and the group of diffeomorphisms of the circle.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {69--133},
     publisher = {mathdoc},
     volume = {347},
     year = {1984},
     zbl = {0514.22012},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1984__347_152598/}
}