@book { SchuleinmehrsprachigenRegionenEuropasSchoolSystemsinMultilingualRegionsofEurope,
    title = "Schule in mehrsprachigen Regionen Europas- School Systems in Multilingual Regions of Europe",
    author = "Werner {Wiater} and Gerda {Videsott}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1100921"
}