Use and reproduction:
10.24355/dbbs.084-202008191343-0 copy citation link
URN (urn:nbn:de:gbv:084-2020081914170)
https://nbn-resolving.org/urn:nbn:de:gbv:084-2020081914170
DOI (10.24355/dbbs.084-202008191343-0)
https://doi.org/10.24355/dbbs.084-202008191343-0