@book { UltimoEinFallfrPeterZoffBand2,
    title = "Ultimo: Ein Fall für Peter Zoff - Band 2",
    author = "Hans-Peter {Vertacnik}",
    year = "2013",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    doi = "10.3239/9783955201333",
    url = "https://m.dotbooks.de/document/211018"
}