@article{1183383781, author = {Langford, C. H.}, title = {Review: Felix Kaufmann, Uber den Begriff des Formalen in Logik und Mathematik}, journal = {J. Symbolic Logic}, volume = {3}, number = {1}, year = {1938}, language = {en}, url = {http://dml.mathdoc.fr/item/1183383781} }
Langford, C. H. Review: Felix Kaufmann, Uber den Begriff des Formalen in Logik und Mathematik. J. Symbolic Logic, Tome 3 (1938) no. 1, . http://gdmltest.u-ga.fr/item/1183383781/