JENSEN, K.; KYNG, M. EPSILON: A System Description Language. DAIMI Report Series, [S. l.], v. 11, n. 150, 1982. DOI: 10.7146/dpb.v11i150.7424. Disponível em: https://tidsskrift.dk/daimipb/article/view/7424. Acesso em: 9 may. 2024.