"Brexit: Crabb and Fox out of Tory race after May wins first round of voting - As it happened" by Andrew Sparrow, Claire Phipps and Ben Quinn, www.theguardian.com. July 5, 2016.
"Michael Gove's campaign speech: I did not want to be British Prime Minister" by Andrew Woodcock, Gavin Cordon and Arj Singh, www.independent.ie. July 1, 2016.
"Brexit fallout recapped: David Cameron out, Jeremy Corbyn under pressure while Nicola Sturgeon plans second Scottish referendum" by Jason Beattie, www.mirror.co.uk. June 25, 2016.
"Davis challenges Cameron with call for referendum on relationship with EU" by Andrew Sparrow, Patrick Wintour, Nicholas Watt, www.theguardian.com. November 4, 2009.
Regarding Juan José Ibarretxe's plan to propose a referendum regarding whether to approve his plan to reform the aunomomy of the Basque Country, El Correo, (p. 23), April 9, 2005.