https://iopscience.iop.org/article/10.1088/1742-5468/2008/04/P04001/pdf (Publisher version)
Allahverdyan, A., & Janzing, D. (2008). Relating the Thermodynamic Arrow of Time to the Causal Arrow. Journal of Statistical Mechanics: Theory and Experiment, 2008: P04001, pp. 1-21. doi:10.1088/1742-5468/2008/04/P04001.