%0 Journal Article %A Jones, Roger %A Parry, William %T Compact abelian group extensions of dynamical systems II %J Compositio Mathematica %D 1972 %P 135-147 %V 25 %N 2 %I Wolters-Noordhoff Publishing %U http://www.numdam.org/item/CM_1972__25_2_135_0/ %G en %F CM_1972__25_2_135_0