@book { SeesturmimMittelalter,
    title = "Seesturm im Mittelalter",
    author = "Carola {Fern}",
    year = "2012",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-01400-6",
    url = "https://www.peterlang.com/document/1044675"
}