El Ghali, R. and Kabbaj, S. 2022. Stability problem in a set of Lebesgue measure zero of bi-additive functional equation. Proyecciones (Antofagasta, On line). 41, 3 (Jun. 2022), 751-764. DOI:https://doi.org/10.22199/issn.0717-6279-4691.