@book { DieImpfgegnerschaftinHessen,
    title = "Die Impfgegnerschaft in Hessen",
    author = "Patrick {Mayr}",
    year = "2020",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b16572",
    url = "https://www.peterlang.com/document/1111240"
}