AL Ali, Sadeq A. A., Muaadh Almahalebi, and Youssfi Elkettani. “Stability of a General P-Radical Functional Equation Related to Additive Mappings in 2-Banach Spaces”. Proyecciones (Antofagasta, On line) 40, no. 1 (January 6, 2021): 49-71. Accessed February 27, 2021. https://www.revistaproyecciones.cl/index.php/proyecciones/article/view/3671.