@article{MZ_1931__33_168265,
     author = {A., Haar},
     title = {\"Uber unendliche kommutative {Gruppe}},
     journal = {Mathematische Zeitschrift},
     pages = {129--159},
     publisher = {mathdoc},
     volume = {33},
     year = {1931},
     zbl = {0001.05502},
     url = {http://geodesic.mathdoc.fr/item/MZ_1931__33_168265/}
}