@article{10_1090_S0894_0347_09_00637_7,
     author = {Bowen, Lewis},
     title = {Measure conjugacy invariants for actions of countable sofic groups},
     journal = {Journal of the American Mathematical Society},
     pages = {217--245},
     publisher = {mathdoc},
     volume = {23},
     number = {1},
     year = {2010},
     doi = {10.1090/S0894-0347-09-00637-7},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-09-00637-7/}
}