The Greek Referendum: Unconstitutional and Undemocratic (σε συνεργασία με την Αλκμήνη Φωτιάδου), στο: Constitutional Change through Euro Crisis Law , EUI Law Department Papers, 7.7.2015.  http://eurocrisislaw.eui.eu/news/the-greek-referendum-unconstitutional-and-undemocratic-by-xenophon-contiades-and-alkmene-fotiadou/