[1]
Sandra Pinelas, M. Arunkumar, and E. Sathya, “Hyers Type Stability of a Radical Reciprocal Quadratic Functional Equation Originating From 3 Dimensional Pythagorean Means”, Int. J. Math. And Appl., vol. 5, no. 4 - A, pp. 45–52, Oct. 2017.