TY - JOUR T1 - Operational measure of entanglement for pure states of bipartite systems A1 - Klyachko, A. A1 - Oztop, B. A1 - Shumovsky, A. JA - Acta Physica Hungarica B Y1 - 2006 VL - 26 SP - 311 EP - 318 N1 - upd vol/pg 24-12-07 ER -