<hi xmlns="http://www.tei-c.org/ns/1.0" rend="bold">Colleoni, Elanor/ Rozza, Alessandro / Arvidsson, Adam (2014):</hi> <hi xmlns="http://www.tei-c.org/ns/1.0" rend="italic">Echo Chamber or Public Sphere? Predicting Political Orientation and Measuring Political Homophily in Twitter Using Big Data</hi>, in: Journal of Communicatio 64 (2014) 317–332