Bey­ond the Base. Poli­ti­cal Par­ties, Citi­zen Acti­vists, and Digi­tal Media Use in the 2009 Ger­man Federal Election

tog­e­ther with Lau­ren Cope­land), in:
Cha­sing the Digi­tal Wave:
Inter­na­tio­nal Per­spec­ti­ves on the Growth of Online Cam­pai­gning
A Spe­cial Issue of the Jour­nal of Infor­ma­ti­on, Tech­no­lo­gy and Poli­tics,
Ed. Rachel Gib­son, Andrea Röm­me­le, Andrew Wil­liam­son,
Issue 2, 2014, pp. 14–29.