@book { HandbuchPublicChangeManagement,
    title = "Handbuch Public Change Management",
    subtitle = "Effizientes Veränderungsmanagement für öffentliche Verwaltungen- Ein Millennium-Buch",
    author = "Ralf {Halten}",
    year = "2003",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1095110"
}