@book { EuropaderRegionenDerFinnischeMeerbusen,
    title = "Europa der Regionen: Der Finnische Meerbusen",
    author = "Karsten {Brüggemann}",
    year = "2021",
    publisher = "Meidenbauer",
    address = ", Germany",
    url = "https://www.peterlang.com/document/1104080"
}