@article{MS2_1985__57_166947,
     author = {Sorin Popa},
     title = {Notes on {Cartan} subalgebras in type {II...} factors.},
     journal = {Mathematica Scandinavica},
     pages = {171--188},
     publisher = {mathdoc},
     volume = {57},
     year = {1985},
     zbl = {0641.46034},
     url = {http://geodesic.mathdoc.fr/item/MS2_1985__57_166947/}
}