Media type: E-Article Title: Migrating boulders on the surface of Alpine valley glaciers Contributor: Alean, Jürg; Schwendener, Lea; Zemp, Michael imprint: Informa UK Limited, 2021 Published in: Geografiska Annaler: Series A, Physical Geography Language: English DOI: 10.1080/04353676.2020.1850064 ISSN: 0435-3676; 1468-0459 Origination: Footnote: