Definability via partial enumerations with semicomputable codomains. Annual of Sofia University St. Kliment Ohridski. Faculty of Mathematics and Informatics, [S. l.], v. 92, p. 49–63, 2000. Disponível em: https://annual.uni-sofia.bg/index.php/fmi/article/view/254. Acesso em: 15 dec. 2025.