RFC 6071 - IP Security (IPsec) and Internet Key Exchange (IKE) ...
S. Frankel & S. Krishnan
rfc (6071)
Shards of Honor (Vorkosigan Saga)
Lois McMaster Bujold
Real-World Software Development
Raoul-Gabriel Urma & Richard Warburton
Homemade Doughnuts
Kamal Grant
Asterisk: The Definitive Guide
Jim Van Meggelen & Russell Bryant & Leif Madsen