Introducing the DigiPart-Index: Mapping and explaining digital political participation on the subnational level in Switzerland. - Uwe Serdült; Gabriel Hofmann; Costa Vayenas (ICEGOV, 2022)

Assessing e-Participation indices: A Call for More Valid Measurement: A Call for More Valid Measurement. - Gabriel Hofmann; Uwe Serdült; Marine Charlotte Benli; Costa Vayenas; Jean-Patrick Villeneuve; Anna Picco-Schwendener; Leonardo Colosante (ICEGOV, 2023)