8Hassan G. Development of a generic wind farm SCADA system [EB/OL]. 2001. http://www.garradhassan.com.
9Hassan G. GH wind farm supervisory control and data acquisition system user's manual[EB/OL]. 2006. http://www.garradhassan.Com.
10Wolthusen S. Layered multipoint network defense and security policy enforcement[C]. The Second Annual IEEE SMC Information Assurance Workshop, West Point, NY, USA, 2001.