@article{AM2_1983__26_137007,
     author = {Piotr W. Cholewa},
     title = {Remarks on stability of functional equations.},
     journal = {Aequationes mathematicae},
     pages = {318--318},
     publisher = {mathdoc},
     volume = {26},
     year = {1983},
     zbl = {0563.39007},
     url = {http://geodesic.mathdoc.fr/item/AM2_1983__26_137007/}
}