@book { TropenzumOrdinariummissaeinStGallen,
    title = "Tropen zum Ordinarium missae in St. Gallen",
    author = "Cristina {Hospenthal}",
    year = "2011",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    doi = "10.3726/978-3-0351-0053-2",
    url = "https://www.peterlang.com/document/1043775"
}