2008 - Groupbased Cryptography [Advanced Courses in Mathematics - CRM Barcelona] (Paperback) ISBN-13: 9783764388263 ISBN-10: 3764388269 Genres: Science & Math, Engineering & Transportation ? 1989 - In the Gunsight of the Kgb (Hardcover) ISBN-13: 9780394562841 ISBN-10: 0394562844 Genres: Biographies & Memoirs, History 1 |