10.24355/dbbs.084-201704251453-0 copy citation link
DOI (10.24355/dbbs.084-201704251453-0)
https://doi.org/10.24355/dbbs.084-201704251453-0
URN (urn:nbn:de:gbv:084-2017042514563)
https://nbn-resolving.org/urn:nbn:de:gbv:084-2017042514563
Use and reproduction: All rights reserved