@book { ObjektbeziehungstheorieundKunsttherapie,
    title = "Objektbeziehungstheorie und Kunsttherapie",
    author = "Mareike {Lüdeke}",
    year = "2009",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836630115",
    url = "https://m.diplom.de/document/226819"
}