This journal provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge.

All articles published in Open Access will be immediately and permanently free for everyone to read and download.  We are continuously working with our author communities to select the best choice of license options: Creative Commons Attribution 4.0 International (CC-BY-SA)

Authors and readers can allows reusers to distribute, remix, adapt, and build upon the material in any medium or format for non-commercial purposes only, and only so long as attribution is given to the creator, and provided that the original work is properly cited.