Grzegorek P., Kupsa Michal :  Exponential return times in a zero-entropy process , Communications on Pure and Applied Analysis vol.11, 3 (2012), p. 1361-1383 [2012] Download DOI: 10.3934/cpaa.2012.11.1361

Grzegorek P., Kupsa Michal :  Return times in a process generated by a typical partition , Nonlinearity vol.22, 2 (2009), p. 371-379 [2009] Download DOI: 10.1088/0951-7715/22/2/007