Clyde Haberman, EVOLUTION IN EUROPE; Italy Discloses Its Web Of Cold War Guerrillas, in The New York Times, 16 novembre 1990. URL consultato l'11 ottobre 2008.
«Germany, France, Belgium, the Netherlands, Greece and Luxembourg have all acknowledged that they maintained Gladio-style networks to prepare guerrilla fighters to leap into action in the event of a Warsaw Pact invasion. Many worked under the code name Stay Behind. Greece called its operation Red Sheepskin. News reports in recent days assert that similar programs have also existed in Britain, Norway, Portugal, Spain, Austria, Turkey and Denmark, and even in neutral countries like Switzerland and Sweden.»
