@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" }