@article{10_4064_ap_13_1_1_17,
     author = {M. Kucharzewski and M. Kuczma},
     title = {On the functional equation {F(A{\textperiodcentered}B)} = {F(A){\textperiodcentered}F(B)}},
     journal = {Annales Polonici Mathematici},
     pages = {1--17},
     publisher = {mathdoc},
     volume = {13},
     number = {1},
     year = {1963},
     doi = {10.4064/ap-13-1-1-17},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-13-1-1-17/}
}