@book{Birke+2019,
url = {https://doi.org/10.3790/9783428430147},
title = {Die deutschen Bundesländer in den Europäischen Gemeinschaften},
title = {},
author = {Hans Eberhard Birke},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:10.3790/9783428430147},
isbn = {9783428430147},
year = {1973},
lastchecked = {2019}
}