BOYAR, Joan; CHAUM, David; DAMGÅRD, Ivan Bjerre; PEDERSEN, Torben Pryds. Convertible Undeniable Signatures. DAIMI Report Series, [S. l.], v. 19, n. 330, 1990. DOI: 10.7146/dpb.v19i330.6719. Disponível em: https://tidsskrift.dk/daimipb/article/view/6719. Acesso em: 11 dec. 2025.