• DML-CZ Home
• Commentationes Mathematicae Universitatis Carolinae

Author: Mátrai, Tamás

• Mátrai, Tamás: Covering $\Sigma^0_\xi$-generated ideals by $\Pi^0_\xi$ sets. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 48 (2007), issue 2, pp. 245-268