@book { HieronymusWitwenbchleinfrSalvinaepist79,
    title = "Hieronymus' Witwenbüchlein für Salvina (epist. 79)",
    author = "Philip {Polcar}",
    year = "2022",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b19203",
    url = "https://www.peterlang.com/document/1159557"
}