Kristopher Daley Ryan Larson Jerald Dawkins A Structural Framework for Modeling Multi-Stage Network Attacks. 5-10 2002 conf/icppw/2002 ICPP Workshops http://csdl.computer.org/comp/proceedings/icppw/2002/1680/00/16800005abs.htm db/conf/icppw/icppw2002.html#DaleyLD02