@book { EngelmordMartinVelsmannermitteltDerzweiteFall,
    title = "Engelmord: Martin Velsmann ermittelt – Der zweite Fall",
    author = "Berndt {Schulz}",
    year = "2014",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    url = "https://m.dotbooks.de/document/283149"
}