@book { DieJustitiabilittderErforderlichkeitsklauseliSdArt72IIGG,
    title = "Die Justitiabilität der Erforderlichkeitsklausel i.S.d. Art. 72 II GG",
    author = "Philipp {Knorr}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1086287"
}