@book { DasBildalsErzieher, title = "Das Bild als Erzieher", author = "Jasmin {Schäfer}", year = "2013", publisher = "Peter Lang Verlag", address = "Berlin, Germany", doi = "10.3726/978-3-653-02655-9", url = "https://www.peterlang.com/document/1047493" }