@book { KonsumentenimFokusderWissenschaft,
    title = "Konsumenten im Fokus der Wissenschaft",
    author = "Kurt {Gedrich} and Waltraud {Kustermann} and Thomas {Zängler}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1103175"
}