Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Kelvin Thomson:

"

In a speech in Parliament in March 2012 he recommended to his colleagues a paper by O'Sullivan in Economic Affairs[32] as crucial reading "for anyone who seriously wants to understand ...why governments of all persuasions struggle to meet people's needs and expectations." Thomson argued that since about 2% of existing infrastructure comes up for renewal each year, and this is a cost governments struggle to pay, a mere 1% annual increase in population may impose an almost unpayable increase of up to 50% in infrastructure costs: