Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{PORMA_1953__12_3_114716, author = {Pereira Coelho, R.}, title = {Regularity types}, journal = {Portugaliae mathematica}, pages = {87--98}, publisher = {mathdoc}, volume = {12}, number = {3}, year = {1953}, mrnumber = {0058959}, zbl = {0051.39901}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PORMA_1953__12_3_114716/} }
Pereira Coelho, R. Regularity types. Portugaliae mathematica, Tome 12 (1953) no. 3, pp. 87-98. http://geodesic.mathdoc.fr/item/PORMA_1953__12_3_114716/