@book { ProduktionundSubstitutioninStreitkrften,
    title = "Produktion und Substitution in Streitkräften",
    author = "Margarete {Haberhauer}",
    year = "2001",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1091929"
}