@book { ThepostalSantaClaus,
    title = "The postal Santa Claus",
    subtitle = "The intriguing history of his magical mail in France… and beyond",
    author = "Valérie-Inés {de la Ville}",
    year = "2026",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    doi = "10.3726/b23869",
    url = "https://www.peterlang.com/document/1790763"
}