@article{JRAM_1994__446_153587,
     author = {Giorgi Valli},
     title = {Interpolation theory, loop groups and instantons.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {137--164},
     year = {1994},
     volume = {446},
     zbl = {0783.58009},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1994__446_153587/}
}