Chechkin, Aleksei V. Max Planck Institute for the Physics of Complex Systems, Max Planck Society;
https://pubs.rsc.org/en/Content/ArticleLanding/2015/CP/C5CP02824H#!divAbstract (Publisher version)
Bodrova, A., Chechkin, A. V., Cherstvy, A. G., & Metzler, R. (2015). Quantifying non-ergodic dynamics of force-free granular gases. Physical Chemistry Chemical Physics, 17(34), 21791-21798. doi:10.1039/c5cp02824h.