@book { FhrungvonEinsatzkrften,
    title = "Führung von Einsatzkräften",
    author = "Gyula {Mezey} and Herbert {Strunz}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1135654"
}