Show 10 5 10 15 20 50 100 250 Sort by year (new to old) Actions Save this search Download search results Subscribe to news feed Your filters: cql: keyword exact "espionage" Add to list Book Geheim België : geschiedenis van de inlichtingendiensten, 1830-2020 Kenneth Lasoen (2020) Add to list Journal Article A1 Protecting research and technology from espionage Dirk Thorleuchter (UGent) and Dirk Van den Poel (UGent) (2013) EXPERT SYSTEMS WITH APPLICATIONS. 40(9). p.3432-3440