[1]
John M. Rassias, M. Arunkumar, E. Sathya and N. Mahesh Kumar 2017. Generalized Ulam - Hyers stability of on (AQQ): Additive-quadratic-Quartic functional equation. Malaya Journal of Matematik. 5, 01 (Jan. 2017), 122–142. DOI:https://doi.org/10.26637/mjm501/012.