@article{10_4153_CMB_1986_054_x,
     author = {Scarowsky, Manny and Boyarsky, Abraham},
     title = {A {Practical} {Two-Dimensional} {Ergodic} {Theorem}},
     journal = {Canadian mathematical bulletin},
     pages = {352--357},
     year = {1986},
     volume = {29},
     number = {3},
     doi = {10.4153/CMB-1986-054-x},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1986-054-x/}
}