Volný, Dalibor. “Completely Squashable Smooth Ergodic Cocycles over Irrational Rotations”. Topological Methods in Nonlinear Analysis 22, no. 2 (December 1, 2003): 331–344. Accessed July 3, 2024. https://apcz.umk.pl/TMNA/article/view/TMNA.2003.043.