@article{1093893519, author = {Chang, Chung-ying}, title = {On explanation of number progression.}, journal = {Notre Dame J. Formal Logic}, volume = {9}, number = {1}, year = {1968}, pages = { 329-334}, language = {en}, url = {http://dml.mathdoc.fr/item/1093893519} }
Chang, Chung-ying. On explanation of number progression.. Notre Dame J. Formal Logic, Tome 9 (1968) no. 1, pp. 329-334. http://gdmltest.u-ga.fr/item/1093893519/