On a functional equation of Bellman in the theory of dynamic programming. Wolfgang Walter (1976) Aequationes mathematicae
On a functional equation of Swiatak on groups. B.R. Ebanks, J.K. Chung, P.K. Sahoo (1993) Aequationes mathematicae
On a Functional Equation of the Theory of Curves in Two Dimensional Conformal Geometry J. ACZÉL (1971) Aequationes mathematicae
On a functional equation related to a generalization of Flett's mean value theorem. Riedel, T., Sablik, Maciej (2000) International Journal of Mathematics and Mathematical Sciences
On a functional equation related to income inequality measures. C.T. Ng (1985) Aequationes mathematicae
On a Functional Equation Related to Iteration. John Lamperti, George O'Brien (1972) Aequationes mathematicae
On a functional equation related to the Cauchy equation Pl. Kannappan, M. Kuczma (1974) Annales Polonici Mathematici
On a functional equation related to the Ptolemaic inequality. C. Alsina, J.L. Garcia-Roig (1987) Aequationes mathematicae
On a functional equation with asymptotically unique continuous solutions. (Short Communication). E. Seneta (1976) Aequationes mathematicae
On a functional equation with asymptotically unique continuous solutions. E. Seneta (1976) Aequationes mathematicae
On a functional inequality arising in the construction of the product of several metric spaces. Robert M. Tardiff (1980) Aequationes mathematicae
On a Functional Which is Quadratic on A-orthogonal Vectors Hamid Drljević (1986) Publications de l'Institut Mathématique