@book { TheEthicsoftheStoicEpictetus,
    title = "The Ethics of the Stoic Epictetus",
    author = "William O. {Stephens}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "New York, United States of America",
    doi = "10.3726/b17855",
    url = "https://www.peterlang.com/document/1068979"
}