@article{1240434764, author = {KUBOKAWA, Yoshihiro}, title = {Ergodic theorems for contraction semi-groups}, journal = {J. Math. Soc. Japan}, volume = {27}, number = {4}, year = {1975}, pages = { 184-193}, language = {en}, url = {http://dml.mathdoc.fr/item/1240434764} }
KUBOKAWA, Yoshihiro. Ergodic theorems for contraction semi-groups. J. Math. Soc. Japan, Tome 27 (1975) no. 4, pp. 184-193. http://gdmltest.u-ga.fr/item/1240434764/