@book { Lesrelationssocialesdanslespetitesentreprises,
    title = "Les relations sociales dans les petites entreprises",
    subtitle = "Une comparaison France, Suède, Allemagne",
    author = "Christian {Dufour} and Adelheid {Hege} and Sofia {Murhem} and Wolfgang {Rudolph}",
    year = "2006",
    publisher = "Peter Lang Verlag",
    address = "Bruxelles, Belgium",
    url = "https://www.peterlang.com/document/1100728"
}