C. Y. LuS. A. WangY. J. ChengSY-YEN KUO2018-09-102018-09-102010-12http://scholars.lib.ntu.edu.tw/handle/123456789/359261Quantum Secure Direct Communication With Constant Number of EPR Pairsjournal article10.1142/S02197499100062772-s2.0-79952846273WOS:000288715700013