@book{Haarmann+2022,
url = {https://doi.org/10.3790/9783428444373},
title = {Wegfall der Geschäftsgrundlage bei Dauerrechtsverhältnissen},
title = {},
author = {Wilhelm Haarmann},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:10.3790/9783428444373},
isbn = {9783428444373},
year = {1979},
lastchecked = {2022}
}