I'm looking for a tool which generates a BibTeX item for a given arxiv id. I only found http://www.crcg.de/arXivToBibTeX/ using Google but this tool always tells me that the arxiv ids I enter don't exist which is of course not true.

Edit: For example http://www.crcg.de/arXivToBibTeX/?q=1503.06747&format=bibtex gives the error message "No paper with the ID “1503.06747” could be found on the arXiv." even though it exists: http://arxiv.org/abs/1503.06747