@book { DerBerufseinstiegindiePublicRelations,
    title = "Der Berufseinstieg in die Public Relations",
    subtitle = "Eine quantitative Inhaltsanalyse von Stellenanzeigen für PR-Volontariate",
    author = "Julia {Laska}",
    year = "2009",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    url = "https://m.diplom.de/document/227090"
}