10.24355/dbbs.084-201912191259-0 copy citation link
URN (urn:nbn:de:gbv:084-2019121912596)
https://nbn-resolving.org/urn:nbn:de:gbv:084-2019121912596
DOI (10.24355/dbbs.084-201912191259-0)
https://doi.org/10.24355/dbbs.084-201912191259-0
Use and reproduction: