@book{2021,
url = {https://doi.org/10.3790/9783428583614},
title = {30 Jahre Deutsche Einheit},
title = {},
author = {},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:10.3790/9783428583614},
isbn = {9783428583614},
year = {2021},
lastchecked = {2021}
}