@book { Ngociationscommercialesetobjectifsspcifiques,
    title = "Négociations commerciales et objectifs spécifiques",
    author = "Gérard {Mercelot}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1100639"
}