Copyright Notice

The author who publishes in this journal agrees with the following conditions:

• The author retains copyright and grants the journal first publication rights with the work simultaneously licensed under the Creative Commons Attribution License which allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
• Authors may enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (for example, publishing it to an institutional repository or publishing it in a book), with acknowledgment of its first publication in this journal.
• Authors are permitted and encouraged to post their work online (for example, in an institutional repository or on an author's website) prior to and during the submission process, as this can lead to productive exchange, as well as earlier and greater citation of the published work.