@book { LiberalisierungdesEisenbahnwesens,
    title = "Liberalisierung des Eisenbahnwesens",
    subtitle = "Zwischen Wettbewerb und Regulierung",
    author = "André {Soldner}",
    year = "2008",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1105349"
}