Erschienen in: DOWNIE, J. Stephen, ed. and others. 2021 ACM/IEEE Joint Conference on Digital Libraries, JCDL 2021, Virtual Conference, Hosted by the University of Illinois at Urbana-Champaign, USA, 27-30 September 2021 ; Proceeding. Piscataway, NJ: IEEE, 2021, pp. 61-69. ISBN 978-1-66541-770-9. Available under: doi: 10.1109/JCDL52503.2021.00018