@article{10_4064_sm204_3_3,
     author = {Yuqing Zhang},
     title = {Ergodicity of $\mathbb Z^2$ extensions of irrational rotations},
     journal = {Studia Mathematica},
     pages = {235--246},
     publisher = {mathdoc},
     volume = {204},
     number = {3},
     year = {2011},
     doi = {10.4064/sm204-3-3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm204-3-3/}
}