@book { DirectDemocracyintheBalticStates,
    title = "Direct Democracy in the Baltic States",
    subtitle = "Institutions, Procedures and Practice in Estonia, Latvia and Lithuania",
    author = "Evren {Somer}",
    year = "2015",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-04440-9",
    url = "https://www.peterlang.com/document/1048564"
}