@article{1178241235, author = {Sat\=o, Ry\=otar\=o}, title = {Ergodic theorems for semi-groups in $L\_{p}$, $1<p<\infty $}, journal = {Tohoku Math. J. (2)}, volume = {26}, number = {4}, year = {1974}, pages = { 73-76}, language = {en}, url = {http://dml.mathdoc.fr/item/1178241235} }
Satō, Ryōtarō. Ergodic theorems for semi-groups in $L_{p}$, $1