10.17185/duepublico/29810 copy citation link
DOI (10.17185/duepublico/29810)
https://doi.org/10.17185/duepublico/29810
URN (urn:nbn:de:hbz:464-20121116-083403-0)
https://nbn-resolving.org/urn:nbn:de:hbz:464-20121116-083403-0