@book { EthnographyonundocumentedimmigrantsintheUnitedStatesofAmerica,
    title = "Ethnography on undocumented immigrants in the United States of America",
    author = "Jane {Vetter}",
    year = "2008",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640186303",
    url = "https://www.hausarbeiten.de/document/116459"
}