Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MZ_1929__29_168092, author = {J. Popken}, title = {Zur {Tranzendenz} von ....}, journal = {Mathematische Zeitschrift}, pages = {542--548}, publisher = {mathdoc}, volume = {29}, year = {1929}, language = {de}, url = {http://geodesic.mathdoc.fr/item/MZ_1929__29_168092/} }
J. Popken. Zur Tranzendenz von ..... Mathematische Zeitschrift, Tome 29 (1929), pp. 542-548. http://geodesic.mathdoc.fr/item/MZ_1929__29_168092/