All our authors now retain their copyright and all rights associated to their work, and what we ask in return is a mere non-exclusive right to publish their work in print and electronically. This means that authors are free to do whatever they want with their article, even republish it elsewhere, as long as the original creation is properly credited.

Each accepted article is published under a Creative Commons licence. Although we apply a CC BY licence by default to all individual articles, we believe it is fair-minded to let authors decide the level of restriction of their licence should they wish so; see our Licence policy for additional information.