@book { TheRegionalChallengeinCentralandEasternEurope,
    title = "The Regional Challenge in Central and Eastern Europe",
    author = "Michael {Keating} and James {Hughes}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Bruxelles, Belgium",
    url = "https://www.peterlang.com/document/1094976"
}