@book{Piepenstock+2019,
url = {https://doi.org/10.3790/9783428423705},
title = {Politische Vereinigungen unter dem Grundgesetz},
title = {},
author = {Wolfgang Piepenstock},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:10.3790/9783428423705},
isbn = {9783428423705},
year = {1971},
lastchecked = {2019}
}