It's always preferable to link to the abstract (from which you can easily get to the PDF), rather than to the PDF (from which it is harder to get back to the ab

It's always preferable to link to the abstract (from which you can easily get to the PDF), rather than to the PDF (from which it is harder to get back to the abstract): https://arxiv.org/abs/1806.08790 https://arxiv.org/abs/1806.08790 (I think it is not entirely inaccurate to think of a direct-to-PDF link as like hotlinking an image from someone's site instead of linking to the site.)