@article{AM2_1978__17_136721,
     author = {Roman. Ger},
     title = {Note on almost additive functions.},
     journal = {Aequationes mathematicae},
     pages = {73--76},
     year = {1978},
     volume = {17},
     zbl = {0441.39008},
     url = {http://geodesic.mathdoc.fr/item/AM2_1978__17_136721/}
}