Mapping the Political Twitterverse: Candidates and Their Followers in the Midterms. - Alexander Hanna; Ben Sayre; Leticia Bode; JungHwan Yang; Dhavan V. Shah (ICWSM, 2011)

Partisan alignments and political polarization online: a computational approach to understanding the french and US presidential elections. - Alexander Hanna; Chris Wells; Peter Maurer; Lew Friedland; Dhavan V. Shah; Jörg Matthes (PLEAD@CIKM, 2013)