@article{MOMA_1996__122_3_178752,
     author = {Wai L. Lo and Rodney Nillsen},
     title = {Differences of {Functions} and {Group} {Generators} for {Compact} {Abelian} {Groups.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {355--366},
     publisher = {mathdoc},
     volume = {122},
     number = {3},
     year = {1996},
     zbl = {0868.22004},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1996__122_3_178752/}
}