@book { WirtschaftshistorischeStudien,
    title = "Wirtschaftshistorische Studien",
    subtitle = "Festgabe für Othmar Pickl",
    author = "Karl {von Hardach}",
    year = "2007",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1103403"
}