%0 Journal Article %A Stanisław Knapowski %T Mean-value estimations for the Möbius function II %J Acta Arithmetica %D 1961 %P 337-343 %V 7 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-7-4-337-343/ %R 10.4064/aa-7-4-337-343 %G fr %F 10_4064_aa_7_4_337_343