@book { ImmobilienmarktundImmobilienmanagement,
    title = "Immobilienmarkt und Immobilienmanagement",
    subtitle = "Enscheidungsgrundlagen für die Immobilienwirtschaft",
    author = "Hansjörg {Bach} and Matthias {Ottmann} and Erwin {Sailer} and Frank Peter {Unterreiner}",
    year = "2011",
    publisher = "Vahlen",
    address = "München, Deutschland",
    url = "https://vahlen.openpublishing.com/document/1220768"
}