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D. ZEGLAMI, and ET ALL, (2014) D'Alembert's Functional Equation and Suuperstability Problem in Hypergroups. Handbook of Functional Equations Springer Optimization and Its Applications 96, pp. pp 367-396, novembre 2014.
D. ZEGLAMI, (2014) On the stability of the generalized mixed trigonometric functional equations. Adv. Pure. Appl. Math. 01/2014, 5 (4) 209-222.
D. ZEGLAMI, and ET ALL, (2014) On the superstability of the pexider type generalized trigonometric functional equations. Acta Mathematica Scientia 34 (2014), n° 6 1749-1760.
D. ZEGLAMI, and ET ALL, (2014) On the superstability of trigonometric typ functional equations. British J. of Math. and Computer Science 4(8) : 1146-1155, 2014.