Multilevel Protection to Electronic Documents Based on Clipboard Monitoring
ZHANG Lei1,2, LI Qing-bao1,2, JIA Tian-jiang1,2, ZHOU Deng-yuan1,2
Computer and Modernization . 2015, (6): 12 -18 .  DOI: 10.3969/j.issn.1006-2475.2015.06.003