Secure Messaging on the Internet by Ph.D. Oppliger, Rolf: Used

Secure Messaging on the Internet (Artech House Information Security and Privacy)

Internet and Intranet Security - Oppliger Artech House - Used Good

Exploring Plywood Hardcover Book Paper Cove Hartung Rolf Van Nostrand 1971

Internet and Intranet Security (Computing Library S.), Oppliger, Rolf, Used; Goo

Russians in the Waffen SS, Hardback, Schiffer 2009, Rolf Michaelis

Authentication Systems for Secure Networks (Comput... by Oppliger, Rolf Hardback

The Art of the Good Life: Clear Thinking for Busine... by Dobelli, Rolf Hardback