@book { GrenzgngerundRumederGrenze,
    title = "Grenzgänger und Räume der Grenze",
    subtitle = "Raumkonstruktionen in der Großregion SaarLorLux",
    author = "Christian {Wille}",
    year = "2012",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-01313-9",
    url = "https://www.peterlang.com/document/1047089"
}