@article{L.B-M.L-L.S-Per-2014,
    author={L. Beraldo E Silva and M. Lima and L. Sodre Jr. and Jérôme 
           Perez },
    title={Mixing as a criterion for indistinguishability and its role in 
           self-gravitating systems },
    journal={Monthly Notices of the Royal Astronomical Society },
    year={2014 },
    month={5},
}