KAHLIG, Peter; SCHWAIGER, Jens. Transforming the functional equation of Gołąb-Schinzel into one of Cauchy. Annales Mathematicae Silesianae, [S. l.], v. 8, p. 33–38, 1994. Disponível em: https://trrest.vot.pl/ojsus/index.php/AMSIL/article/view/14215. Acesso em: 7 may. 2025.