@book{Graf+2019,
url = {https://doi.org/10.3790/9783428470198},
title = {Die Behandlung von Verbraucherbeschwerden in Unternehmen},
title = {},
author = {Karin Graf},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:10.3790/9783428470198},
isbn = {9783428470198},
year = {1990},
lastchecked = {2019}
}