@book { TarnungLeistungWerbung,
    title = "Tarnung – Leistung – Werbung",
    author = "Albrecht {Greule} and Waltraud {Sennebogen}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1096080"
}