@article{GDZPPN002430355,
title = {A Multiparameter Strongly Superadditive Ergodic Theorem.},
journal = {Mathematische Zeitschrift},
volume = {189},
year = {1985},
pages = {11-18},
zbl = {0565.60033},
url = {http://dml.mathdoc.fr/item/GDZPPN002430355}
}
Emilion, R.; Hachem, B. A Multiparameter Strongly Superadditive Ergodic Theorem.. Mathematische Zeitschrift, Tome 189 (1985) pp. 11-18. http://gdmltest.u-ga.fr/item/GDZPPN002430355/