Addendum to the Article by M. Crnjac, B. Guljas and H.I. Miller, Aequationes Math. 39 (1990), 55-67. H.I. Miller — 1990 Aequationes mathematicae
Applications of the zero-one law to problems connected with Cauchy's functional equation. M. Crnjac; H.I. Miller; B. Zivaljevic — 1989 Aequationes mathematicae