@book { LehrerinnenfrheProfessionalisierung,
    title = "Lehrerinnen – frühe Professionalisierung",
    author = "Claudia {Crotti}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1098810"
}