https://stephanebigham.com/en/the-projects-for-an-ecumenical-council-in-1367-an-unpublished-dialogue-between-john-cantacuzenus-and-the-legate-paul/
By John Meyendorff Translated from French and Greek and Edited by Steven Bigham Translated and edited by Steven Bigham, with permission, originally published...
the projectsecumenical councilunpublished