@article{2106, author = {Albuquerque, J.}, title = {Sur les ensembles clairsem\'es}, journal = {Portugaliae mathematica}, volume = {3}, year = {1942}, pages = {132-156}, zbl = {0027.09703}, mrnumber = {0007034}, language = {fr}, url = {http://dml.mathdoc.fr/item/2106} }
Albuquerque, J. Sur les ensembles clairsemés. Portugaliae mathematica, Tome 3 (1942) pp. 132-156. http://gdmltest.u-ga.fr/item/2106/