@book { CrossborderLeasing,
    title = "Cross-border-Leasing",
    subtitle = "Ein kommunales Finanzierungsinstrument",
    author = "Thorsten {Winkelmann}",
    year = "2008",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1104738"
}