@book { GottesSpureninKinderherzen,
    title = "Gottes Spuren in Kinderherzen",
    author = "Viola Maria {Seifert}",
    year = "2012",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-02224-7",
    url = "https://www.peterlang.com/document/1047355"
}