@book { BurnoutinderSozialenArbeit,
    title = "Burnout in der Sozialen Arbeit",
    subtitle = "Hintergründe und Handlungsstrategien",
    author = "Markus {Singer}",
    year = "2012",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783842837133",
    url = "https://m.diplom.de/document/229287"
}