@book { AlsUBootKommandantgegenEngland,
    title = "Als U-Boot-Kommandant gegen England",
    author = "Georg-Günther {Freiherr von Forstner} and EK-2 {Militär}",
    year = "2022",
    publisher = "EK-2 Publishing",
    address = ", Deutschland",
    url = "https://tolino.openpublishing.com/document/1281748"
}