@article{76150,
author = {Carlo Rovelli and Matteo Smerlak},
title = {{Thermal time and Tolman-Ehrenfest effect\,:\,'temperature as the speed of time'}},
doi = {10.1088/0264-9381/28/7/075007},
journal = {Classical and quantum gravity},
pages = {075007},
year = {2011},
volume = {28},
number = {7},
issn = {0264-9381},
}