@book{Hartwig+2020,
url = {https://doi.org/10.3790/9783428493456},
title = {Das Verhältnis von Werbung und Umwelt und seine wettbewerbsrechtlichen Grenzen},
title = {},
author = {Henning Hartwig},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:10.3790/9783428493456},
isbn = {9783428493456},
year = {1999},
lastchecked = {2020}
}