@book { ArbeitsrechtundSozialversicherungProblemederKoordination,
    title = "Arbeitsrecht und Sozialversicherung- Probleme der Koordination",
    subtitle = "Probleme der Koordination",
    author = "Wilfried {Lüthi}",
    year = "1975",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1069696"
}