@article{DAS_2019_a2,
     author = {John T. Griesmer},
     title = {Semicontinuity of structure for small sumsets in compact abelian groups},
     journal = {Discrete analysis},
     year = {2019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DAS_2019_a2/}
}