• New year, new website!


    A happy and productive new year to our readers, reviewers and authors! We start with a fresh look and an up-to-date Open Journal System. Unfortunately, we can currently not send bi-monthly newsletters with new journal content. Until this functionality is added again, we will use announcements such as this to inform you. In this regard: nine more articles have been added to issue 90 in the last quarter of 2017. Have a look into the archive.

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