@book{Löbbe+Kruck+2019,
url = {https://doi.org/10.3790/9783428435807},
title = {Wirtschaftsstrukturelle Bestandsaufnahme für das Ruhrgebiet},
title = {},
author = {Klaus LöbbeRoswitha Kruck},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:10.3790/9783428435807},
isbn = {9783428435807},
year = {1976},
lastchecked = {2019}
}