TY - JOUR AU - Uri Shapira TI - A solution to a problem of Cassels and Diophantine properties of cubic numbers JO - Annals of mathematics PY - 2011 SP - 543 EP - 557 VL - 173 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4007/annals.2011.173.1.11/ DO - 10.4007/annals.2011.173.1.11 LA - en ID - 10_4007_annals_2011_173_1_11 ER -