@book { PersonalbibliographieFriedrichSchlieper,
    title = "Personalbibliographie Friedrich Schlieper",
    author = "Gerhard {Schannewitzky}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1072523"
}