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.

All articles published Open Access will be immediately and permanently free for everyone to read and download.  We are continuously working with our author communities to select the best choice of license options,

• Creative Commons Attribution-ShareAlike (CC BY-SA)

This journal is open access journal which means that all content is freely available without charge to users or institution. Users are allowed to read, download, copy, distribute, print, search, or link to full text articles in this journal without asking prior permission from the publisher or author. This is in accordance with Budapest Open Access Initiative