@book { BruderkampfinderNordmark,
    title = "Bruderkampf in der Nordmark?",
    author = "Lennart {Stolina}",
    year = "2023",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b21152",
    url = "https://www.peterlang.com/document/1366961"
}