@article{MAN_1980__250_163414,
     author = {David L. Johnson},
     title = {Translation-Invariant {Linear} {Forms} on {D(G).}},
     journal = {Mathematische Annalen},
     pages = {109--112},
     publisher = {mathdoc},
     volume = {250},
     year = {1980},
     zbl = {0417.43003},
     url = {http://geodesic.mathdoc.fr/item/MAN_1980__250_163414/}
}