@book { eYouth,
    title = "eYouth",
    author = "Wannes {Heirman} and Sara {Mels} and Christiane {Timmerman} and Heidi {Vandenbosch} and Michel {Walrave}",
    year = "2012",
    publisher = "Peter Lang Verlag",
    address = "Bruxelles, Belgium",
    doi = "10.3726/978-3-0352-6153-0",
    url = "https://www.peterlang.com/document/1044104"
}