@book { ForeignLanguageLearningOutsideSchool,
    title = "Foreign Language Learning Outside School",
    author = "Jutta {Rymarczyk}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-03765-4",
    url = "https://www.peterlang.com/document/1045966"
}