@book { UnlautereWerbunggegenberKindernundJugendlichen, title = "Unlautere Werbung gegenüber Kindern und Jugendlichen", author = "Alexander {Stief}", year = "2013", publisher = "Peter Lang Verlag", address = "Berlin, Germany", doi = "10.3726/978-3-653-02987-1", url = "https://www.peterlang.com/document/1046449" }