@book{Grieser+2022, url = {https://doi.org/10.3790/9783428511372}, title = {Flexible Integration in der Europäischen Union: Neue Dynamik oder Gefährdung der Rechtseinheit?}, title = {}, author = {Veronika Grieser}, publisher = {Duncker & Humblot}, address = {}, doi = {doi:10.3790/9783428511372}, isbn = {9783428511372}, year = {2003}, lastchecked = {2022} }