TY - JOUR AU - Tom Sanders TI - Green's sumset problem at density one half JO - Acta Arithmetica PY - 2011 SP - 91 EP - 101 VL - 146 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/aa146-1-6/ DO - 10.4064/aa146-1-6 LA - en ID - 10_4064_aa146_1_6 ER -