@article{GDZPPN002092913, title = {Ergodic Theorem for Convex Sets and Operator Algebras.}, journal = {Inventiones mathematicae}, volume = {34}, year = {1976}, pages = {201-214}, zbl = {0338.46054}, url = {http://dml.mathdoc.fr/item/GDZPPN002092913} }
Lance, E. Christopher. Ergodic Theorem for Convex Sets and Operator Algebras.. Inventiones mathematicae, Tome 34 (1976) pp. 201-214. http://gdmltest.u-ga.fr/item/GDZPPN002092913/