@article{MAN_1954__127_160367, author = {W. Markwald}, title = {Zur {Theorie} der konstruktiven {Wohlordnungen.}}, journal = {Mathematische Annalen}, pages = {135--149}, year = {1954}, volume = {127}, zbl = {0056.04701}, url = {http://geodesic.mathdoc.fr/item/MAN_1954__127_160367/} }