@book{Pietzko+2020,
url = {https://doi.org/10.3790/9783428464739},
title = {Der Tatbestand des § 613 a BGB},
title = {},
author = {Joachim Pietzko},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:10.3790/9783428464739},
isbn = {9783428464739},
year = {1988},
lastchecked = {2020}
}