Bill Hagestad (Red-DragonRising @RedDragon1949) is a consultant, speaker and expert on Chinese cyber warfare. He is the author of 21st Century Chinese Cyberwarfare and Chinese Information Warfare Doctrine Development 1994 2014. Theories about Chinese military use of computers as a weapon system began some would argue with Major General Wang Pu Feng in 1995; later in 1999 Senior Colonels Qiao Liang & Wang Xiangsui of the PLA Air Force (PLAAF) wrote War Without Limits”]
Source: http://securityaffairs.co/wordpress/35125/cyber-warfare-2/china-cyber-capabilities.html