Thank you! Also, I found a slightly better link, not directly to the PDF but to a page with the abstract and other info: http://www.cs.ox.ac.uk/publications/pu

Thank you! Also, I found a slightly better link, not directly to the PDF but to a page with the abstract and other info: http://www.cs.ox.ac.uk/publications/publication7166-abstract.html http://www.cs.ox.ac.uk/publications/publication7166-abstract...