@book { FromGastarbeitertoEuropeanExpatriates,
    title = "From «Gastarbeiter» to European Expatriates",
    author = "Eleni {Tseligka}",
    year = "2019",
    publisher = "Peter Lang Verlag",
    address = "Oxford, United Kingdom",
    doi = "10.3726/b14361",
    url = "https://www.peterlang.com/document/1057307"
}