@book { ChallengestoRepresentativeDemocracy,
    title = "Challenges to Representative Democracy",
    author = "Robert {Wiszniowski}",
    year = "2015",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-04847-6",
    url = "https://www.peterlang.com/document/1048503"
}