@article{2262, author = {Campos Ferreira, Jaime}, title = {Sur la notion d'ordre infinit\'esimal}, journal = {Portugaliae mathematica}, volume = {14}, year = {1955}, pages = {43-62}, zbl = {0065.34302}, mrnumber = {0076007}, language = {fr}, url = {http://dml.mathdoc.fr/item/2262} }
Campos Ferreira, Jaime. Sur la notion d'ordre infinitésimal. Portugaliae mathematica, Tome 14 (1955) pp. 43-62. http://gdmltest.u-ga.fr/item/2262/