北美地区可管理安全服务发展现状与分析
周斯宁,向友君
Development and Analysis of Managed Security Services in North America
Sining Zhou,Youjun Xiang
电信科学 . 2009, (2): 41 -47 .  DOI: 10.3969/j.issn.1000-0801.2009.02.010