@book{Schmid+2020,
url = {https://doi.org/10.3790/9783428453092},
title = {Zur sozialen Wirklichkeit des Vertrages},
title = {},
author = {Walter Schmid},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:10.3790/9783428453092},
isbn = {9783428453092},
year = {1983},
lastchecked = {2020}
}