@book { DerStreitumdieKrefelderFronleichnamsprozession,
    title = "Der Streit um die Krefelder Fronleichnamsprozession",
    author = "Volker {Speth}",
    year = "2019",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b15546",
    url = "https://www.peterlang.com/document/1111076"
}