I wrote a small paper on this for a 2nd year project. The aim was to give a 30 minute easy to follow seminar to our peers.
[Hope it answers your question] Note that this was only the handout for the seminar so it isn't conclusive. Also, it isn't the final draught (cant find it )so there may be a few mistakes
EDIT: Didn't realise which forum this was posted in and so thought you were asking for help