1. An ergodic lemma;Akcoglu, M. A.;Proc. Amer. Math. Soc.,1965
2. Pointwise ergodic theorems;Akcoglu, M. A.;Trans. Amer. Math. Soc.,1966
3. The representations of linear functionals by measures on sets of extreme points;Bishop, Errett;Ann. Inst. Fourier (Grenoble),1959
4. Sur un lemme ergodique voisin du lemme de E. Hopf, et sur une de ses applications;Brunel, Antoine;C. R. Acad. Sci. Paris,1963
5. Identification of the limit of operator averages;Chacon, R. V.;J. Math. Mech.,1962