@book{2012,
url = {https://doi.org/10.3790/9783428539369},
title = {Herausforderungen und Perspektiven der EU},
title = {},
author = {},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:10.3790/9783428539369},
isbn = {9783428539369},
year = {2012},
lastchecked = {2012}
}