@book { ModelingFiscalPolicyintheEuropeanUnion,
    title = "Modeling Fiscal Policy in the European Union",
    author = "Janusz {Kudla} and Konrad {Walczyk} and Robert {Kruszewski}",
    year = "2015",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-05004-2",
    url = "https://www.peterlang.com/document/1050432"
}