Thanks for the article link; but in the future please consider linking to the main arxiv page[1], not a specific PDF. The direct link will become outdated if a

Thanks for the article link; but in the future please consider linking to the main arxiv page[1], not a specific PDF. The direct link will become outdated if a new version of the paper is uploaded; also, the main page will contain a lot of useful data about the publication (citations/etc), will include the abstract in the page, and give a choice of what format you read it in. 1. http://arxiv.org/abs/1209.1938 http://arxiv.org/abs/1209.1938