%0 Journal Article %A P. Turán %A Stanisław Knapowski %T Further developments in the comparative prime-number theory IV %J Acta Arithmetica %D 1965 %P 147-161 %V 11 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-11-2-147-161/ %R 10.4064/aa-11-2-147-161 %G en %F 10_4064_aa_11_2_147_161