@article{10_4064_ap_9_1_55_63,
     author = {M. Kuczma},
     title = {On the form of solutions of some functional equations},
     journal = {Annales Polonici Mathematici},
     pages = {55--63},
     publisher = {mathdoc},
     volume = {9},
     number = {1},
     year = {1960},
     doi = {10.4064/ap-9-1-55-63},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-9-1-55-63/}
}