TY - JOUR AU - Yuqing Zhang TI - Ergodicity of $\mathbb Z^2$ extensions of irrational rotations JO - Studia Mathematica PY - 2011 SP - 235 EP - 246 VL - 204 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/sm204-3-3/ DO - 10.4064/sm204-3-3 LA - en ID - 10_4064_sm204_3_3 ER -