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@article{MAT_1962_6_3_a2, author = {E. Hopf}, title = {On the ergodic theorem for positive linear operators}, journal = {Matematika}, pages = {29--36}, publisher = {mathdoc}, volume = {6}, number = {3}, year = {1962}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MAT_1962_6_3_a2/} }
E. Hopf. On the ergodic theorem for positive linear operators. Matematika, Tome 6 (1962) no. 3, pp. 29-36. http://geodesic.mathdoc.fr/item/MAT_1962_6_3_a2/