@article{IM_1983__72_143011,
     author = {V.F.R. Jones},
     title = {Index for {Subfactors.}},
     journal = {Inventiones mathematicae},
     pages = {1--26},
     publisher = {mathdoc},
     volume = {72},
     year = {1983},
     zbl = {0508.46040},
     url = {http://geodesic.mathdoc.fr/item/IM_1983__72_143011/}
}