@book { NotanEssencebutaPositioning,
    title = "‘Not an Essence but a Positioning’",
    author = "Andrea {Hammel} and Godela {Weiss-Sussex}",
    year = "2021",
    publisher = "Meidenbauer",
    address = ", Germany",
    url = "https://www.peterlang.com/document/1107461"
}