@book{Oppermann+2019, url = {https://doi.org/10.3790/9783428490646}, title = {Deutsche RundfunkgebĆ¼hren und europƤisches Beihilferecht}, title = {}, author = {Thomas Oppermann}, publisher = {Duncker & Humblot}, address = {}, doi = {doi:10.3790/9783428490646}, isbn = {9783428490646}, year = {1997}, lastchecked = {2019} }