On solutions of the second generalization of d'Alembert's functional equation on a restricted domain. - Anna Bahyrycz (Appl. Math. Comput., 2013)

On an equation characterizing multi-additive-quadratic mappings and its Hyers-Ulam stability. - Anna Bahyrycz; Krzysztof Cieplinski; Jolanta Olko (Appl. Math. Comput., 2015)

On Ulam Stability of Functional Equations in 2-Normed Spaces - A Survey. - Anna Bahyrycz; Janusz Brzdek; El-Sayed El-Hady; Zbigniew Lesniak (Symmetry, 2021)

On Stability of a General n-Linear Functional Equation. - Anna Bahyrycz; Justyna Sikorska (Symmetry, 2023)