@book { UnemploymentandLaborMarketRigidities,
    title = "Unemployment and Labor Market Rigidities",
    author = "Denis {Drechsler}",
    year = "2004",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832484651",
    url = "https://m.diplom.de/document/223257"
}