@book { LesdfisnergtiquesduXXIesicle,
    title = "Les défis énergétiques du XXIe  siècle",
    author = "Yves {Bouvier}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Bruxelles, Belgium",
    url = "https://www.peterlang.com/document/1108921"
}