@book { DieJohanniterballeiWestfalen,
    title = "Die Johanniterballei Westfalen",
    author = "Marc {Sgonina}",
    year = "2014",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-03761-6",
    url = "https://www.peterlang.com/document/1047618"
}