G. Vigna, Ch. Krügel: "Host-Based Intrusion Detection"; in: "Handbook of Information Security", John Wiley and Sons, 2005, ISBN: 0-471-64833-7, 1 - 12.
http://aleph.ub.tuwien.ac.at/F?base=tuw01&func=find-c&ccl_term=AC05936376