Open access and copyright

This is an open access journal which means that all content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, without asking prior permission from the publisher or the author. This is in accordance with the BOAI (Budapest Open Access Initiative) definition of open access. All articles are published with open access under the Creative Commons Attribution-NonCommercial-NoDerivatives Licence (CC BY-NC-ND). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this Journal is cited in accordance with accepted academic practice. No use, distribution or reproduction is permitted, which does not comply with these terms.