2018
Serving Communion. Re-thinking the Relationship between Primacy and Synodality - Graz 2018
2016
Synodality and Primacy during the First Millennium: Towards a Common Understanding in Service of the Unity of the Church - Chieti 2016
2007
Ecclesiological and Canonical Consequences of the Sacramental Nature of the Church: Ecclesial Communion, Conciliarity and Authority - Ravenna 2007
1993
Uniatism, Method of Union of the Past, and the Present Search for Full Communion - Balamand 1993
1990
Declaration of the Sixth Plenary Meeting - Freising 1990