@article{1183733340, author = {Lorenzen, P.}, title = {Logical Reflection and Formalism}, journal = {J. Symbolic Logic}, volume = {23}, number = {1}, year = {1958}, pages = { 241-249}, language = {en}, url = {http://dml.mathdoc.fr/item/1183733340} }
Lorenzen, P. Logical Reflection and Formalism. J. Symbolic Logic, Tome 23 (1958) no. 1, pp. 241-249. http://gdmltest.u-ga.fr/item/1183733340/