@book { NationalandEuropeanLanguagePolicies,
    title = "National and European Language Policies",
    subtitle = "Contributions to the Annual Conference 2007 of EFNIL in Riga",
    author = "Gerhard {Stickel (EFNIL)}",
    year = "2009",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1105625"
}