@article{GDZPPN002488337,
title = {The Abramov-Rokhlin Entropy Addition Formula for Amenable Group Actions.},
journal = {Monatshefte f\"ur Mathematik},
volume = {114},
year = {1992},
pages = {317-330},
zbl = {0764.28014},
url = {http://dml.mathdoc.fr/item/GDZPPN002488337}
}
Zhang, Qing; Ward, Thomas. The Abramov-Rokhlin Entropy Addition Formula for Amenable Group Actions.. Monatshefte für Mathematik, Tome 114 (1992) pp. 317-330. http://gdmltest.u-ga.fr/item/GDZPPN002488337/