[1]
S. Murthy, M. Arunkumar, and V. Govindan, “General solution and generalized Ulam-Hyers stability of a generalized n- type additive quadratic functional equation in Banach space and Banach algebra: direct and fixed point methods”, IJAMS, vol. 3, no. 1, pp. 25–64, May 2015, doi: 10.14419/ijams.v3i1.4402.