@book { GeschicktplatziertProductPlacementalsWerbeform, title = "Geschickt platziert: Product Placement als Werbeform", author = "Danielle {Sprengnagel}", year = "2015", publisher = "BACHELOR + MASTER PUBLISHING", address = "Hamburg, Deutschland", url = "https://m.bachelor-master-publishing.de/document/297526" }