@book { DestruktivittundSuizid,
    title = "Destruktivität und Suizid",
    author = "Frank {Wolf}",
    year = "2003",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832464080",
    url = "https://m.diplom.de/document/221835"
}