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Inter­na­tio­nal Per­spec­ti­ves on the Growth of Online Cam­pai­gning.
Gib­son, R/​Römmele, A/​Williamson, A (eds):
A spe­cial issue of the Jour­nal of Infor­ma­ti­on Tech­no­lo­gy and Poli­tics,
Issue 2, 2014, pp. 123–129