TY - JOUR AU - Yining Zhao AU - Alan Wood TI - Duplication Problem in Treaty systems: Causes and Solutions JO - Computer Science and Information Systems PY - 2014 VL - 11 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CSIS_2014_11_1_a19/ ID - CSIS_2014_11_1_a19 ER -