@book { WorkLifeBalanceunterdemAspektinstabilerBeschftigungen,
    title = "Work Life Balance unter dem Aspekt instabiler Beschäftigungen",
    author = "Ella {Kolb}",
    year = "2009",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640367108",
    url = "https://www.hausarbeiten.de/document/131192"
}