Homological methods in the solution of certain functional equations. Jenö Szigeti (1986) Aequationes mathematicae
Hosszú's functional equation over rings generated by their units. (Short Communication). T.M.K. Davison, Lothar Redlin (1980) Aequationes mathematicae
Hosszú's functional equation over rings generated by their units. T.M.K. Davison, Lothar Redlin (1980) Aequationes mathematicae