@book { Lestarifsmarchandisesdescheminsdefersuisses18501913,
    title = "Les tarifs marchandises des chemins de fer suisses (1850-1913)",
    author = "Gérard {Duc}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1106284"
}