%0 Journal Article %A Uri Shapira %T A solution to a problem of Cassels and Diophantine properties of cubic numbers %J Annals of mathematics %D 2011 %P 543-557 %V 173 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4007/annals.2011.173.1.11/ %R 10.4007/annals.2011.173.1.11 %G en %F 10_4007_annals_2011_173_1_11