ANTIMIROV, Valentin M.; DEGTYAREV, Anatoli. Consistency and Semantics of Equational Definitions over Predefined Algebras. DAIMI Report Series, [S. l.], v. 22, n. 431, 1993. DOI: 10.7146/dpb.v22i431.6747. Disponível em: https://tidsskrift.dk/daimipb/article/view/6747. Acesso em: 7 dec. 2025.