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 London Assembly:

"

The Assembly comprises 25 Assembly Members elected using the Additional Member System of proportional representation, with 13 seats needed for a majority. Elections take place every four years – at the same time as for the Mayor. There are 14 geographical super-constituencies each electing one Member, with a further 11 members elected from a party list to make the total Assembly Members from each party proportional to the votes cast for that party across the whole of London using a modified D'Hondt allocation.[1] A party must win at least 5% of the party list vote in order to win any seats. Members of the London Assembly have the post-nominal title 'AM', as do Members of the Welsh Assembly. The annual salary for a London Assembly Member is approximately £55,000.[2]