@book { DieRevolution184849inBrandenburg,
    title = "Die Revolution 1848/49 in Brandenburg",
    author = " {Brandenburgisches Landeshauptarchiv}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b19395",
    url = "https://www.peterlang.com/document/1156985"
}