The Patriarchate of Constantinople in context and comparison : proceedings of the international conference Vienna, September 12th-15th 2012 : in memoriam Konstantinos Pitsakis (1944-2012) and Andreas Schminck (194 [...] / edited by Christian Gastgeber, Ekaterini Mitsiou, Johannes Preiser-Kapeller, and Vratislav Zervan. Wien : Verlag der Österreichischen Akademie der Wissenschaften, 2017