Iteration Theory: Dynamical Systems and Functional Equations. - Francisco Balibrea; Ludwig Reich; Jaroslav Smítal (Int. J. Bifurc. Chaos, 2003)

On covariant Embeddings of a Linear Functional equation with Respect to an Analytic Iteration Group. - Harald Fripertinger; Ludwig Reich (Int. J. Bifurc. Chaos, 2003)