(EN) Greg Harkin, Francis Elliott, Raymond Whitaker, Revealed: IRA bombs killed eight British soldiers in Iraq, in The Independent, 16 ottobre 2005 (archiviato dall'url originale il 9 luglio 2008).
«[...] one trigger used in a recent Iraqi bombing was a three-way device, combining a command wire, a radio signal and an infra-red beam – a technique perfected by the IRA.»