@article{MS2_1954__2_165515,
     author = {ERLING FOLNER},
     title = {Generalization of a theorem of {Bogolio\`uboff} to topological groups. {With} an appendix on {Banach} mean values in nonabelian groups},
     journal = {Mathematica Scandinavica},
     pages = {5--18},
     publisher = {mathdoc},
     volume = {2},
     year = {1954},
     zbl = {0056.02703},
     url = {http://geodesic.mathdoc.fr/item/MS2_1954__2_165515/}
}