@book { DeCondorcetDecroly,
    title = "De Condorcet à Decroly",
    author = "Sylvain {Wagnon}",
    year = "2017",
    publisher = "Peter Lang Verlag",
    address = "Bruxelles, Belgium",
    doi = "10.3726/b13160",
    url = "https://www.peterlang.com/document/1113388"
}