@book { EmpressesofLateByzantium,
    title = "Empresses of Late Byzantium",
    author = "Petra {Melichar}",
    year = "2019",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b15725",
    url = "https://www.peterlang.com/document/1110843"
}