@article{CMJ_1997__47_3_a12,
     author = {Buczolich, Zolt\'an and Pfeffer, Washek F.},
     title = {Variations of additive functions},
     journal = {Czechoslovak Mathematical Journal},
     pages = {525--555},
     publisher = {mathdoc},
     volume = {47},
     number = {3},
     year = {1997},
     mrnumber = {1461431},
     zbl = {0903.26004},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMJ_1997__47_3_a12/}
}