@book { TheEuropeanArmedForcesinTransition,
    title = "The European Armed Forces in Transition",
    author = "Franz {Kernic} and Paul {Klein} and Karl W. {Haltiner}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1099271"
}