%0 Journal Article %A Costa Pereira, N. %T Sharp elementary estimates for the sequence of primes %J Portugaliae mathematica %D 1985 %P 399-406 %V 43 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/PORMA_1985__43_4_114522/ %G en %F PORMA_1985__43_4_114522