@book { MargaretOliphantsCarlingfordSeries,
    title = "Margaret Oliphant’s Carlingford Series",
    author = "Birgit {Kämper}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1091818"
}