%0 Journal Article %A R. MacLeod %T A new estimate for the sum $M(x)=\sum_{n≤x}μ(n)$ %J Acta Arithmetica %D 1967 %P 49-59 %V 13 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-13-1-49-59/ %R 10.4064/aa-13-1-49-59 %G en %F 10_4064_aa_13_1_49_59