Keys to successful scientific VGI projects. - Jens Ingensand; Sarah Composto; Olivier Ertz; Daniel Rappo; Marion Nappez; Timothée Produit; Mathias Oberson; Ivo Widmer; Stéphane Joost (PeerJ Prepr., 2016)

Challenges in VGI for scientific projects. - Jens Ingensand; Sarah Composto; Marion Nappez; Timothée Produit; Olivier Ertz; Mathias Oberson; Daniel Rappo (PeerJ Prepr., 2016)

Participants' motivations to contribute to biodiversity citizen science projects. - Maryam Lotfian; Jens Ingensand; Olivier Ertz; Sarah Composto; Mathias Oberson; Simon Oulevay; David Campisi; Florent Joerin (PeerJ Prepr., 2018)