Licence to publish

   1. Licence agreement

 Either:

The authors assert that they are the copyright owners and, if accepted, permit the journal to publish their article under an Open Access CC BY licence (https://creativecommons.org/licenses/by/4.0/)

Or:

The authors assert that they are not the copyright owner in the article but have the permission of the copyright owner to publish in the journal under an Open Access CC BY licence (https://creativecommons.org/licenses/by/4.0/). Please provide the name of the copyright owner in the cover letter during the submission.

Should the article be rejected all publication and other rights revert back to the authors (or other copyright owners).

     2. Author warranties

The authors warrant that:

The publisher reserves the right to withdraw or remove any content that is considered to be in breach of these warranties.