"PVT Consultation Document"(PDF). Department of Communications, Energy and Natural Resources (Ireland). p. 12. Archived from the original(PDF) on 21 July 2011. Retrieved 7 December 2010.
"PVT Consultation Document"(PDF). Department of Communications, Energy and Natural Resources (Ireland). p. 12. Archived from the original(PDF) on 21 July 2011. Retrieved 7 December 2010.