@article{stat-paper,
    AUTHOR = {Koral Ilgun and richard {A.} Kemmerer and and Phillip {A.} Porras},
    TITLE = {State Transition Analysis: {A} Rule-Based Intrusion Detection Approach},
    JOURNAL = {{IEEE} Transactions on Sortware Engineering},
    VOLUME = {20},
    NUMBER = {5},
    URL = {http://www.csl.sri.com/papers/stat-paper/}
}