Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{AMLG_1983__23_138009, author = {Dag Normann}, title = {R.E. degrees of continuous functionals.}, journal = {Archiv f\"ur mathematische Logik und Grundlagenforschung}, pages = {79--98}, publisher = {mathdoc}, volume = {23}, year = {1983}, zbl = {0527.03028}, url = {http://geodesic.mathdoc.fr/item/AMLG_1983__23_138009/} }
Dag Normann. R.E. degrees of continuous functionals.. Archiv für mathematische Logik und Grundlagenforschung, Tome 23 (1983), pp. 79-98. http://geodesic.mathdoc.fr/item/AMLG_1983__23_138009/