Varieties of democracy measuring two centuries of political change - Coppedge, Michael 1957-; Gerring, John 1962-; Glynn, Adam ca. 20./21. Jh; Knutsen, Carl Henrik 1981-; Lindberg, Staffan I. 1969-; Pemstein, Daniel ca. 20./21. Jh; Seim, Brigitte ca. 20./21. Jh; Skaaning, Svend-Erik 1978-; Teorell, Jan 1969- (Cambridge University Press, 2020)