%0 Journal Article %A Alexandre I. Danilenko %A %T Isometric extensions, 2-cocycles and ergodicity of skew products %J Studia Mathematica %D 1999 %P 123-142 %V 137 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-137-2-123-142/ %R 10.4064/sm-137-2-123-142 %G en %F 10_4064_sm_137_2_123_142