This is my current field of interest and I am reading many of papers (some good and some bad) on the subject. I searched the net and found that there are some lists with papers on the subject but most of them are outdated, so I decided to create my own list. You are invited to send me papers that you also think relevant by adding comments to the page.
01/01/2012 Update – The previous link is now invalid. See this post for a longer explanation.