@book { OvideDecrolyunpdagoguedelducationnouvelle,
    title = "Ovide Decroly, un pédagogue de l’Éducation nouvelle",
    author = "Sylvain {Wagnon}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Bruxelles, Belgium",
    doi = "10.3726/978-3-0352-6324-4",
    url = "https://www.peterlang.com/document/1053740"
}