@article{1208442829, author = {Plato, Jan von}, title = {Gentzen's proof of normalization for natural deduction}, journal = {Bull. Symbolic Logic}, volume = {14}, number = {2}, year = {2008}, pages = { 240-257}, language = {en}, url = {http://dml.mathdoc.fr/item/1208442829} }
Plato, Jan von. Gentzen’s proof of normalization for natural deduction. Bull. Symbolic Logic, Tome 14 (2008) no. 2, pp. 240-257. http://gdmltest.u-ga.fr/item/1208442829/