DEFINABILITY OF JUMP CLASSES IN THE LOCAL THEORY OF THE $\omega$-ENUMERATION DEGREES. Annual of Sofia University St. Kliment Ohridski. Faculty of Mathematics and Informatics, [S. l.], v. 102, p. 207–224, 2015. Disponível em: https://annual.uni-sofia.bg/index.php/fmi/article/view/70. Acesso em: 14 dec. 2025.