Open Access Policy

This is an open access journal. All content is freely available without charge to the user or his/her institution and without any embargo period. The journal follows the BOAI definition ( of open access. Articles are published under the terms of the Creative Commons Attribution License ( Everyone can download and read the article, as well as share and adapt the articles, even for commercial purposes, without requesting consent of the author or the publisher beforehand, if appropriate credit is given to the original publication. Additionally, authors are encouraged to self-archive their articles in open electronic archives that conform to standards of Open Archives Initiative (