@book { ValryetLonardledramedunerencontre,
    title = "Valéry et Léonard : le drame d’une rencontre",
    subtitle = "Genèse de l’Introduction à la méthode de Léonard de Vinci",
    author = "Christina {Vogel}",
    year = "2007",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1102892"
}