This data collection contains open data for Bellinge (Denmark), which is publicly available at https://data.dtu.dk/collections/Dataset_for_Bellinge_An_urban_drainage_case_study/5029124 and was originally published in a case study:

Pedersen, Agnethe Nedergaard; Pedersen, Jonas Wied; Vigueras-Rodriguez, Antonio; Brink-Kjær, Annette; Borup, Morten; Mikkelsen, Peter Steen (2021).
Dataset for Bellinge: An urban drainage case study.
Technical University of Denmark. Collection. https://doi.org/10.11583/DTU.c.5029124.v1

The provided data come with a Creative Commons License CC BY 4.0