Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MAN_1925__93_159075, author = {W. ACKERMANN}, title = {Begr\"undung des ,,tertium non datur}, journal = {Mathematische Annalen}, pages = {1--36}, publisher = {mathdoc}, volume = {93}, year = {1925}, zbl = {50.0023.02}, url = {http://geodesic.mathdoc.fr/item/MAN_1925__93_159075/} }
W. ACKERMANN. Begründung des ,,tertium non datur. Mathematische Annalen, Tome 93 (1925), pp. 1-36. http://geodesic.mathdoc.fr/item/MAN_1925__93_159075/