@article{AM2_1975__12_136509,
     author = {Edgar Berz},
     title = {Sublinear {Functions} on {R.}},
     journal = {Aequationes mathematicae},
     pages = {200--206},
     year = {1975},
     volume = {12},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AM2_1975__12_136509/}
}