@book{Blümel+2016, url = {https://doi.org/10.3790/9783428514397}, title = {Beiträge zum Planungsrecht 1959–2000}, title = {Hrsg. von Klaus Grupp / Michael Ronellenfitsch}, author = {Willi Blümel}, publisher = {Duncker & Humblot}, address = {}, doi = {doi:10.3790/9783428514397}, isbn = {9783428514397}, year = {2004}, lastchecked = {2016} }