Hepburn, Paul Anthony. “Is This Local E-Democracy? How the Online Sphere of Influence Shaped Local Politics. Empirical Evidence from the Manchester Congestion Charge Referendum”. JeDEM - eJournal of eDemocracy and Open Government 4, no. 1 (October 18, 2012): 45–66. Accessed April 19, 2024. https://jedem.org/index.php/jedem/article/view/89.