Knieling, J., Kretschmann, N., Nell, R., & Pfau-Weller, N. (2021). Knowledge production and learning effects using the example of living labs in Halle (Saale) and Mannheim. Raumforschung Und Raumordnung | Spatial Research and Planning, 79(4), 438-452. https://doi.org/10.14512/rur.30 (Original work published 2021)