@book { ErzieherinneninSupervision,
    title = "Erzieherinnen in Supervision",
    author = "Anna-Maria {Maile}",
    year = "2008",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836621694",
    url = "https://m.diplom.de/document/226313"
}