@book { AnalysethoriquedestermesdelchangelecasdelaSuisse,
    title = "Analyse théorique des termes de l'échange: le cas de la Suisse",
    author = "Beat {Bürgenmeier}",
    year = "1978",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1070611"
}