@book{Ingold+2010,
url = {https://doi.org/10.3790/9783428525393},
title = {Erstplanungspflichten im System des Planungsrechts},
title = {},
author = {Albert Ingold},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:10.3790/9783428525393},
isbn = {9783428525393},
year = {2007},
lastchecked = {2010}
}