@book { OrthodoxyandEcumenism,
    title = "Orthodoxy and Ecumenism",
    author = "Razvan {Porumb}",
    year = "2019",
    publisher = "Peter Lang Verlag",
    address = "Oxford, United Kingdom",
    doi = "10.3726/b14950",
    url = "https://www.peterlang.com/document/1057788"
}