@book { 1Abs1BNatSchG,
    title = "§ 1 Abs. 1 BNatSchG",
    author = "Annedore {Rikus}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1090004"
}