INGÓLFSDÓTTIR, Anna; SCHALK, Andrea. A Fully Abstract Denotational Model for Observational Congruence. BRICS Report Series, [S. l.], v. 2, n. 40, 1995. DOI: 10.7146/brics.v2i40.19942. Disponível em: https://tidsskrift.dk/brics/article/view/19942. Acesso em: 6 dec. 2025.