%0 Journal Article %A Lindström, Bernt %T On Möbius Functions and a Problem in Combinatorial Number Theory %J Canadian mathematical bulletin %D 1971 %P 513-516 %V 14 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1971-092-9/ %R 10.4153/CMB-1971-092-9 %F 10_4153_CMB_1971_092_9