DOMAŃSKA, Katarzyna; GER, Roman. Addition formulae with singularities. Annales Mathematicae Silesianae, [S. l.], v. 18, p. 7–20, 2004. Disponível em: https://trrest.vot.pl/ojsus/index.php/AMSIL/article/view/14088. Acesso em: 7 may. 2025.