Contribution to periodical (2013) - Phivos Mylonas (editor), Ioannis Anagnostopoulos (editor), Fernando Bobillo (editor), Markus Strohmaier (editor), G.J.P.M. Houben (editor), Geert-Jan Houben (editor), G. J. Houben (editor), Geert Jan Houben (editor), GJPM Houben (editor)