Information For Librarians

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.

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

All users are free to:

Share—copy and redistribute the material in any medium or format (see terms).
Adapt—remix, transform, and build upon the material (see terms).

The licensor cannot revoke these freedoms as long as you follow the license terms:

Attribution—You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
NonCommercial—You may not use the material for commercial purposes.
ShareAlike—If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.

We encourage research librarians to list this journal among their library's electronic journal holdings.