@book { SenecasEpistolaryResponsum,
    title = "Seneca’s Epistolary «Responsum»",
    author = "William E. {Wycislo}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1091322"
}