This license allows anyone to read, copy, download, print, distribute and use the article for any other lawful purpose copy that appropriate attribution is given. 

Author(s) who publish with this journal hold the copyright without restriction and agree to the following terms:

1. Author(s) retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution 4.0 International License  that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

2. Author(s) are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).