%0 Journal Article %A Jin-Hui Fang %A Yong-Gao Chen %T On a problem of SierpiƄski %J Acta Arithmetica %D 2012 %P 373-382 %V 156 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa156-4-5/ %R 10.4064/aa156-4-5 %G pl %F 10_4064_aa156_4_5