@article{IM_1994__118_1_144242,
     author = {Dan Voiculescu},
     title = {The analogues of entropy and of {Fisher's} information measure in free probability theory, {II.}},
     journal = {Inventiones mathematicae},
     pages = {411--440},
     publisher = {mathdoc},
     volume = {118},
     number = {1},
     year = {1994},
     zbl = {0820.60001},
     url = {http://geodesic.mathdoc.fr/item/IM_1994__118_1_144242/}
}