Media type: E-Book Title: Digital platforms' information concentration : from keystone players to gatekeepers Contributor: Marty, Frédéric [Author]; Warin, Thierry [Author] Published: [Montréal]: CIRANO, [2020] Published in: Cahier scientifique ; 2020,70 Extent: 1 Online-Ressource (circa 21 Seiten); Illustrationen Language: English Keywords: Graue Literatur Origination: Footnote: Access State: Open Access