TY - JOUR AU - Roy Maltby TI - Root systems and the Erdős-Szekeres Problem JO - Acta Arithmetica PY - 1997 SP - 229 EP - 245 VL - 81 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/aa-81-3-229-245/ DO - 10.4064/aa-81-3-229-245 LA - de ID - 10_4064_aa_81_3_229_245 ER -