@book { KundenorientierungdurchLeitbilder,
    title = "Kundenorientierung durch Leitbilder",
    author = "Sonja {Destino}",
    year = "2013",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656390381",
    url = "https://www.hausarbeiten.de/document/211257"
}