@article{1093882950, author = {Friedman, William H.}, title = {Calculemus.}, journal = {Notre Dame J. Formal Logic}, volume = {21}, number = {1}, year = {1980}, pages = { 166-174}, language = {en}, url = {http://dml.mathdoc.fr/item/1093882950} }
Friedman, William H. Calculemus.. Notre Dame J. Formal Logic, Tome 21 (1980) no. 1, pp. 166-174. http://gdmltest.u-ga.fr/item/1093882950/