Pascal Jürgens, Andreas Jungherr, Harald Schoen. Small worlds with a difference: new gatekeepers and the filtering of political information on Twitter. In David De Roure, Marshall Scott Poole, editors, Web Science 2011, WebSci '11, Koblenz, Germany - June 15 - 17, 2011. pages 21, ACM, 2011. [doi]
Abstract is missing.