10.24355/dbbs.084-201703221108-0 copy citation link
DOI (10.24355/dbbs.084-201703221108-0)
https://doi.org/10.24355/dbbs.084-201703221108-0
URN (urn:nbn:de:gbv:084-2018082412531)
https://nbn-resolving.org/urn:nbn:de:gbv:084-2018082412531
Use and reproduction: All rights reserved