Robert K. Cunningham Steven Cheung Martin W. Fong Ulf Lindqvist David M. Nicol Ronald Pawlowski Eric Robinson William H. Sanders Sankalp Singh Alfonso Valdes Bradley Woodworth Michael Zhivich 99-115 2007 Critical Infrastructure Protection http://dx.doi.org/10.1007/978-0-387-75462-8_8 conf/ifip11-10/2007 db/conf/ifip11-10/cip2007.html#CunninghamCFLNPRSSVWZ07