@book { InvestorRelationsfrKrisenzeitenamFinanzmarkt,
    title = "Investor Relations für Krisenzeiten am Finanzmarkt",
    author = "Gerrit {Böckenhoff}",
    year = "2009",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640472772",
    url = "https://www.hausarbeiten.de/document/139204"
}