@book { berdasVerhaltendersaurenPhosphatasebeiLebererkrankungen,
    title = "Über das Verhalten der sauren Phosphatase bei Lebererkrankungen",
    author = "Marianne {Gisel}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1069196"
}