@article{10_4064_ap_10_1_41_48,
     author = {J. Kordylewski and M. Kuczma},
     title = {On the continuous dependence of solutions of some functional equations on given functions {(I)}},
     journal = {Annales Polonici Mathematici},
     pages = {41--48},
     publisher = {mathdoc},
     volume = {10},
     number = {1},
     year = {1961},
     doi = {10.4064/ap-10-1-41-48},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-10-1-41-48/}
}