@article{AM2_1991__41_2-3_137397,
     author = {Gy. Maksa and Z. Dar\'oczy and T. Szab\'o},
     title = {Some regularity properties of algorithms and additive functions with respect to them.},
     journal = {Aequationes mathematicae},
     pages = {111--118},
     year = {1991},
     volume = {41},
     number = {2-3},
     zbl = {0722.39005},
     url = {http://geodesic.mathdoc.fr/item/AM2_1991__41_2-3_137397/}
}