@book { OutplacementMakeorBuy,
    title = "Outplacement - Make or Buy",
    author = "Martin {Wild}",
    year = "2005",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783638448093",
    url = "https://www.hausarbeiten.de/document/47988"
}