@article{10_4064_ap_20_2_191_194,
     author = {R. Jajte},
     title = {Remark on a mean ergodic theorem},
     journal = {Annales Polonici Mathematici},
     pages = {191--194},
     publisher = {mathdoc},
     volume = {20},
     number = {2},
     year = {1968},
     doi = {10.4064/ap-20-2-191-194},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-20-2-191-194/}
}