Regular Iteration in the Case of Multiplier Zero
Regularity Properties of Functional Equations
Regularity Properties of Functional Equations (Short Communication)
Regularization and general methods in the theory of functional equations.
Remarks on One-Parameter Subsemigroups of the Affine Group and Their Homo- and Isomorphisms.
Remarks on some number-theoretical functional equations.
Résolutions de deux équations fonctionnelles proches de l'équation de Cauchy