@book { LeadershipAnforderungenandiemoderneFhrungskraft,
    title = "Leadership. Anforderungen an die moderne Führungskraft",
    author = "Nadine {K.}",
    year = "2017",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    url = "https://www.hausarbeiten.de/document/377292"
}