@book { ZweiHamburgersegelnnachHarwich,
    title = "Zwei Hamburger segeln nach Harwich",
    author = "Florian John {Hanauer}",
    year = "2023",
    publisher = "Edition Svanen",
    address = ", Deutschland",
    url = "https://tolino.openpublishing.com/document/1337363"
}