Securing Wi-Fi Networks. - Kjell Jørgen Hole; Erlend Dyrnes; Per Thorsheim (Computer, 2005)

Comparing Firewall Technologies. - Per Thorsheim (Information Security Management Handbook, 6th ed., 2007)

Firewall Technologies: Comparison. - Per Thorsheim (Encyclopedia of Information Assurance, 2011)

Cracking Associative Passwords. - Kirsi Helkala; Nils Kalstad Svendsen; Per Thorsheim; Anders Wiehe (NordSec, 2012)