English homepage for Transportadora De Gas Del Norte S.A. (accessed 2 February 2017).
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“Argentina: Gas and Graft,” The Economist, 10 May 2007.
“Argentina fires two in tax evasion, bribery probe,” Reuters, 17 May 2007;
“Oyarbide indicts two former government officials,” Buenos Aires Herald, 18 December 2010.
“Court dismisses charges in Skanska probe,” Buenos Aires Herald, 11 November 2011. 217