Media type: E-Article Title: Changing patterns of social media use? A population-level study of Finland Contributor: Koiranen, Ilkka; Keipi, Teo; Koivula, Aki; Räsänen, Pekka Published: Springer Science and Business Media LLC, 2020 Published in: Universal Access in the Information Society, 19 (2020) 3, Seite 603-617 Language: English DOI: 10.1007/s10209-019-00654-1 ISSN: 1615-5297; 1615-5289 Origination: Footnote: