@article{IM_1969__7_141964,
     author = {E.C. LANGE and J. DIXMIER},
     title = {Deux nouveaux facteurs de type {II1.}},
     journal = {Inventiones mathematicae},
     pages = {226--234},
     publisher = {mathdoc},
     volume = {7},
     year = {1969},
     url = {http://geodesic.mathdoc.fr/item/IM_1969__7_141964/}
}