@book { KlostermordMartinVelsmannermitteltDerfnfteFall,
    title = "Klostermord: Martin Velsmann ermittelt - Der fünfte Fall",
    author = "Berndt {Schulz}",
    year = "2019",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    url = "https://m.dotbooks.de/document/477512"
}