10.24355/dbbs.084-201909131350-0 copy citation link
DOI (10.24355/dbbs.084-201909131350-0)
https://doi.org/10.24355/dbbs.084-201909131350-0
URN (urn:nbn:de:gbv:084-2019091313501)
https://nbn-resolving.org/urn:nbn:de:gbv:084-2019091313501
Use and reproduction: