@article{MS2_1957__5_165643,
     author = {ERLING FOLNER},
     title = {Note on groups with and without full {Banach} mean value},
     journal = {Mathematica Scandinavica},
     pages = {5--11},
     publisher = {mathdoc},
     volume = {5},
     year = {1957},
     zbl = {0080.31903},
     url = {http://geodesic.mathdoc.fr/item/MS2_1957__5_165643/}
}