Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{AMLG_1972__15_137878, author = {J\"org Flum}, title = {Hanf numbers and well-ordering numbers.}, journal = {Archiv f\"ur mathematische Logik und Grundlagenforschung}, pages = {164--178}, publisher = {mathdoc}, volume = {15}, year = {1972}, zbl = {0267.02039}, url = {http://geodesic.mathdoc.fr/item/AMLG_1972__15_137878/} }
Jörg Flum. Hanf numbers and well-ordering numbers.. Archiv für mathematische Logik und Grundlagenforschung, Tome 15 (1972), pp. 164-178. http://geodesic.mathdoc.fr/item/AMLG_1972__15_137878/