Interventions for Softening Can Lead to Hardening of Opinions: Evidence from a Randomized Controlled Trial. - Andreas Spitz; Ahmad Abu-Akel; Robert West 001 (WWW, 2021)

United States Politicians' Tone Became More Negative with 2016 Primary Campaigns. - Jonathan Külz; Andreas Spitz; Ahmad Abu-Akel; Stephan Günnemann; Robert West 001 (CoRR, 2022)