Met. John Zizioulas on primacy

OrthodoxChristianity.net: Petrine Ministry and the Unity of the Church edited by James Puglisi

30 Days, from 2003: “When we speak of the primacy...

... we are referring to the primacy of the Church of Rome, that is exercised by the pope in that he is bishop of that See". An interview with Joannis Zizioulas, Orthodox Metropolitan of Pergamum

by Gianni Valente

An interview from 2005.

Papal Primacy and Conciliarity; John Zizioulas - Ecclesiological presuppositions of the holy Eucharist

Something from GOARCH: Papal Primacy by Rev. Emmanuel Clapsis

Dominicana: Evelyn Waugh and Despair

Insight Scoop: Now available: "Methodical Realism" by Étienne Gilson

I think the book was published by Christendom Press for a while, but I suppose it has gone out of print?