The two parties goes on the memorandum – "also reviewed the problem of theological dialogue between the Orthodox Church and the Catholic Church after the session of the Orthodox-Catholic Joint Commission for Theological Dialogue in Ravenna". Actually, whilst the Patriarchate of Constantinople signed the final document of that session (about the authority and collegial character of the Church), the Patriarchate of Moscow did not, as it left the meeting before its end. In this respect, in the Zurich memorandum the two delegations write that, "due to different opinions about this issue, the two parties acknowledged the need to keep discussing the matter". The meeting was attended, for the Patriarchate of Constantinople, by the metropolitan bishop of Pergamum, Joannis Zizioulas (who, along with card. Walter Kasper, is the Orthodox co-president of the Joint Commission for Dialogue); the metropolitan bishop of France, Emmanuel, and the archimandrite Bartolomeo Samaras, deputy secretary general of the Holy Synod. For the Patriarchate of Moscow, it was attended by the metropolitan bishop Juvénal of Kroutitsy et de Kolomna, member of the Holy Synod, the metropolitan bishop Kirill of Smolensk et de Kaliningra, president of the External Affairs Department of the Patriarchate, and the archpriest Nicolas Balashov, secretary for intra-Orthodox relations of the Patriarchate.
