@book { RoyalAirForcegegenLuftwaffe,
    title = "Royal Air Force gegen Luftwaffe",
    subtitle = "Die Eskalation zum strategischen Luftkrieg 3. September 1939 bis 12. Mai 1940",
    author = "Michael {Neumann}",
    year = "2007",
    publisher = "Meidenbauer",
    address = ", Germany",
    url = "https://www.peterlang.com/document/1104143"
}