@article{1102807038, author = {Sat\=o, Ry\=otar\=o}, title = {Positive operators and the ergodic theorem.}, journal = {Pacific J. Math.}, volume = {79}, number = {2}, year = {1978}, pages = { 215-219}, language = {en}, url = {http://dml.mathdoc.fr/item/1102807038} }
Satō, Ryōtarō. Positive operators and the ergodic theorem.. Pacific J. Math., Tome 79 (1978) no. 2, pp. 215-219. http://gdmltest.u-ga.fr/item/1102807038/