CAA initial proposals for price controls at Heathrow, Gatwick and Stansted airports - consultation paper & supporting proposals
The full document is large (4.4mb) - it can be downloaded, in pdf, as a whole or in its separate parts.
There are also a number of supporting papers to the proposals. These are also available in pdf below:
Thre is also a four-page non-technical guide to the proposals. This is available in pdf below: