@book { TowardsEurope,
    title = "Towards Europe",
    author = "Paal {Frisvold}",
    year = "2017",
    publisher = "Peter Lang Verlag",
    address = "Bruxelles, Belgium",
    doi = "10.3726/b13198",
    url = "https://www.peterlang.com/document/1113324"
}