@article{01214048, title = {Korovkin sets and mean ergodic theorems.}, journal = {Journal of Convex Analysis}, volume = {5}, year = {1998}, pages = {147-151}, zbl = {0914.47009}, language = {en}, url = {http://dml.mathdoc.fr/item/01214048} }
Nishishiraho, Toshihiko. Korovkin sets and mean ergodic theorems.. Journal of Convex Analysis, Tome 5 (1998) pp. 147-151. http://gdmltest.u-ga.fr/item/01214048/