@article{CM_1937__4__112_0, author = {Freudenthal, Hans}, title = {Zur intuitionistischen Deutung logischer Formeln}, journal = {Compositio Mathematica}, volume = {4}, year = {1937}, pages = {112-116}, zbl = {0015.24201}, language = {de}, url = {http://dml.mathdoc.fr/item/CM_1937__4__112_0} }
Freudenthal, Hans. Zur intuitionistischen Deutung logischer Formeln. Compositio Mathematica, Tome 4 (1937) pp. 112-116. http://gdmltest.u-ga.fr/item/CM_1937__4__112_0/