TY  - JOUR
AU  - Vassilios Gregoriades
TI  - Turning Borel sets into clopen sets effectively
JO  - Fundamenta Mathematicae
PY  - 2012
SP  - 119
EP  - 143
VL  - 219
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/fm219-2-4/
DO  - 10.4064/fm219-2-4
LA  - en
ID  - 10_4064_fm219_2_4
ER  -