@article{ASENS_1986_4_19_1_57_0,
     author = {Pimsner, Mihai and Popa, Sorin},
     title = {Entropy and index for subfactors},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {57--106},
     publisher = {Elsevier},
     volume = {Ser. 4, 19},
     number = {1},
     year = {1986},
     doi = {10.24033/asens.1504},
     mrnumber = {87m:46120},
     zbl = {0646.46057},
     language = {en},
     url = {http://www.numdam.org/articles/10.24033/asens.1504/}
}