SANDRA PINELAS; M. ARUNKUMAR; E. SATHYA. Hyers Type Stability of a Radical Reciprocal Quadratic Functional Equation Originating From 3 Dimensional Pythagorean Means. International Journal of Mathematics And its Applications, [S. l.], v. 5, n. 4 - A, p. 45–52, 2017. Disponível em: http://ijmaa.in/index.php/ijmaa/article/view/1237. Acesso em: 14 may. 2024.