@article{CM_1972__25_2_135_0,
     author = {Jones, Roger and Parry, William},
     title = {Compact abelian group extensions of dynamical systems {II}},
     journal = {Compositio Mathematica},
     pages = {135--147},
     year = {1972},
     publisher = {Wolters-Noordhoff Publishing},
     volume = {25},
     number = {2},
     mrnumber = {338318},
     zbl = {0243.54039},
     language = {en},
     url = {https://www.numdam.org/item/CM_1972__25_2_135_0/}
}