Not looking to argue or debate, I'm just curious regarding any available informational sources, preferably in, but not limited to, English. Other than short summary blurbs/paragraphs, are there any published materials discussing the different methods, approaches, evidences, non-starters, deal-breakers, theories, avenues to explore, etc. regarding acceptance of councils (especially ecumenical ones), and/or what to do about saints the other side are wary of or have condemned? Or other like stuff. Essentially I'm looking for some kind of texts on OO/EO theological discussions and dialogue from the last 50 or so years, but focused on the issues not directly related to Christological language and Church/Imperial politics of the earlier times.