@book { KonkreteProblemeffentlicherPlanung,
    title = "Konkrete Probleme öffentlicher Planung",
    author = "Eberhard {Wille}",
    year = "2018",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b14084",
    url = "https://www.peterlang.com/document/1068613"
}