@book { TheAgriEnvironmentalPolicyoftheEuropeanUnion,
    title = "The Agri-Environmental Policy of the European Union",
    author = "Karl {Bruckmeier} and Wiking {Ehlert}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1093126"
}