@book { ContentandLanguageIntegratedLearningCLILinEurope,
    title = "Content and Language Integrated Learning (CLIL) in Europe",
    author = "Stephan {Breidbach} and Britta {Viebrock}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-02955-0",
    url = "https://www.peterlang.com/document/1047768"
}