@article{GDZPPN002107538, title = {Classification of subfactors: the reduction to commuting squares.}, journal = {Inventiones mathematicae}, volume = {100}, year = {1990}, pages = {19-44}, zbl = {0757.46054}, url = {http://dml.mathdoc.fr/item/GDZPPN002107538} }
Popa, S. Classification of subfactors: the reduction to commuting squares.. Inventiones mathematicae, Tome 100 (1990) pp. 19-44. http://gdmltest.u-ga.fr/item/GDZPPN002107538/